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Periactin (Cyproheptadine)

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Generic Periactin is used to relieve cold- and allergy-related symptoms such as hay fever, nasal inflammation, stuffy nose, red and inflamed eyes, hives, and swelling. Generic Periactin is approved by FDA. Generic Periactin blocks the effects of the naturally occurring chemical histamine in your body.

Other names for this medication:

Similar Products:
Atarax, Phenergan, Flonase, Allegra


Also known as:  Cyproheptadine.


Generic Periactin is used to treat fever, nasal inflammation, stuffy nose, red and inflamed eyes, hives, swelling and other symptoms of cold and allergy.

Generic Periactin blocks the effects of the naturally occurring chemical histamine in your body.

Periactin is also known as Cyproheptadine, Ciplactin, Periactine, Ciproral.

Generic name of Generic Periactin is Cyproheptadine.

Brand name of Generic Periactin is Periactin.


Generic Periactin can be taken in tablets (4mg) and syrup. You should take it by mouth.

Take Generic Periactin by mouth with or without food.

Measure the syrup form of Generic Periactin with a special dose-measuring spoon or cup.

If you want to achieve most effective results do not stop taking Generic Periactin suddenly.


If you overdose Generic Periactin and you don't feel good you should visit your doctor or health care provider immediately. Symptoms of Generic Periactin overdosage: extreme sleepiness, confusion, weakness, ringing in the ears, blurred vision, large pupils, dry mouth, flushing, fever, shaking, insomnia, hallucinations, seizure.


Store at room temperature between 15 to 30 degrees C (59 to 86 degrees F) away from moisture and heat. Keep container tightly closed. Throw away any unused medicine after the expiration date. Keep out of the reach of children.

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Side effect occurrence does not only depend on medication you are taking, but also on your overall health and other factors.


Do not take Generic Periactin if you are allergic to Generic Periactin components.

Try to be careful with Generic Periactin if you're pregnant or you plan to have a baby, or you are a nursing mother. Generic Periactin can harm your baby.

Do not take cyproheptadine if you have taken a monoamine oxidase inhibitor (MAOI) such as isocarboxazid (Marplan), phenelzine (Nardil), or tranylcypromine (Parnate) in the last 14 days.

Be careful in taking Generic Periactin if you have glaucoma or pressure in the eye, stomach ulcer, enlarged prostate, bladder problems, difficulty urinating, hyperthyroidism, hypertension, any problems with heart, asthma.

Be careful with taking Generic Periactin if you use anxiety or sleep medicines such as alprazolam (Xanax), diazepam (Valium), chlordiazepoxide (Librium), temazepam (Restoril), or triazolam (Halcion); anti-depression medications such as amitriptyline (Elavil), doxepin (Sinequan), nortriptyline (Pamelor), fluoxetine (Prozac), sertraline (Zoloft), or paroxetine (Paxil); any other medications that make you feel drowsy, sleepy, or relaxed.

Avoid machine driving while taking Generic Periactin.

Avoid alcohol.

Do not stop taking Generic Periactin suddenly.

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We hypothesized that rhythms in hypothalamic serotonergic activity were permissive to daily and estrous cycle-related rhythms of LH, FSH and prolactin (PRL). In the Syrian hamster, proestrus (PRO) is characterized by a surge of LH, FSH and PRL; diestrus (DIE) by low LH and FSH and a small surge of PRL, while in photoperiod-induced anestrous (PIA) animals there is a surge of LH and FSH and low PRL. Turnover rates of serotonin (5HT) in four brain areas were determined for the three reproductive states at 2-h intervals. Turnover in the preoptic area and arcuate nuclei did not change, indicating that 5HT projections to these regions probably do not control LH, FSH or PRL release. Serotonin turnover in the median eminence (ME) was elevated at 0600 h in PIA females, at 0600 h, 0800 h, and 1400 h on DIE and at 0600 h and 2200 h on PRO. Since the pattern of 5HT turnover in the ME is different during each of the three reproductive states, 5HT in this area is likely not crucial to the control of LH, FSH and PRL. Turnover of 5HT also did not change in the suprachiasmatic nuclei (SCN) of PRO or PIA animals. However, 5HT turnover rates in the SCN were elevated at 1200 h, 2000 h, and 2400 h on DIE. The correlation of high 5HT turnover in the SCN of DIE but not PRO and PIA animals suggested that elevated serotonergic activity in the SCN is part of the mechanism by which the gonadotropin surge is prevented on DIE. To test this, PRO and DIE hamsters were injected with 5HT receptor ligands. Administration of a 5HT agonist attenuated the PRO surge of LH and blocked the surge of PRL. In contrast, administration of two 5HT antagonists failed to elicit a surge of LH in DIE and phenobarbital-blocked PRO females, an indication that other mechanisms also contribute to inhibition of gonadotropin and PRL surges.

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The effects of p-chlorophenylalanine, an inhibitor of serotonin synthesis, indomethacin, an inhibitor of prostaglandin synthesis, cyproheptadine, a serotonin, bradykinin and histamine antagonist, were assessed separately and in combination with chloroquine (CQ) in Vom strains of Swiss albino mice (18-22 g) of either sex infected intraperitoneally with 1 x 10(7) Plasmodium yoelii nigeriensis-induced malaria. As prophylactic, these agents reduced from 31.9 +/- 4.5 to 16.1 +/- 8.1% the level of parasitemia relative to control but had no appreciable activity as curative agents when administered subcutaneously once daily for 4 days after 72 h of parasites innoculum in vivo. However, CQ alone and the combination of these agents with CQ in curative and prophylactic treatments significantly reduced (from 50.3 +/- 5.8 to 4.9 +/- 0.75%) the level of parasitemia (P < 0.05), which was taken only once 72 h after the parasites innoculum. The prophylactic result was shown to produce better results than the curative treatment. The data indicate that inhibitors and an antagonist can reduce the parasitemia load (the extent of damage and the severity of infection) as well as enhance the effects of CQ when combined with it for malaria therapy. The study reveals that the production of autacoids in established infection renders autacoid inhibitors and an antagonist ineffective for radical cure in malarial mice; however, selective inhibition of local hormones implicated in the pathological manifestations of malaria infection by autacoid inhibitors and an antagonist may be a possible pathway to reduce the severity of infection and the associated tissue damage and to enhance the efficacy of available anti-malarials.

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We conclude that methotrexate is effective in the treatment of autoimmune urticaria.

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Ficus sur Forssk (Moraceae) is used in traditional African medicine in the treatment of epilepsy, pain and inflammations. Anticonvulsant activity was investigated using picrotoxin (PTX), strychnine (SCN), isoniazid (INZ), pentylenetetrazole (PTZ) and N-methyl-D-aspartic acid NMDA models of convulsion. The phytochemical analysis of the extract revealed the presence of flavonoids, saponins, tannins, alkaloids and anthraquinone. Oral administration of Ficus sur, 1 h before intraperitoneal injection of chemical convulsants significantly (p < 0.05) delayed the onset and prolonged the duration of convulsions in PTX, SCN, INZ, PTZ and NMDA-induced seizures. However, the anticonvulsant activity of the ethanolic extract of Ficus sur was significantly reversed following intraperitoneal pre-treatment with flumazenil (GABA receptor antagonist), cyproheptadine (5-HT2 receptor antagonist) and L-NNA (nitric oxide synthase inhibitor) in picrotoxin-induced convulsion. The data obtained suggest that ethanol extract of Ficus sur possessed significant anticonvulsant effect, thereby confirming the traditional uses of Ficus sur in the treatment of epilepsies; mechanisms of which could involve interaction with GABAergic, glycinergic, serotonergic and glutaminergic system barks.

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1. Current and voltage recordings were made from antidromically identified motoneurones (MNs) in transverse thoracolumbar spinal cord slices of neonatal rats. 2. Applied by superfusion (10-100 microM) or pressure ejection, 5-hydroxytryptamine (5-HT) elicited a slow depolarization (or inward current) in 81% and a hyperpolarization (or outward current) in 9% of responsive MNs; the responses persisted in a low-Ca2+, high-Mg2+ or tetrodotoxin (TTX)-containing solution. 3. 5-HT induced the occurrence in some MNs of excitatory postsynaptic potentials (EPSPs) or inhibitory postsynaptic potentials (IPSPs), which were reversibly eliminated by TTX, low-Ca2+, high-Mg2+ solution or by the 5-HT2 receptor antagonists ketanserin and spiperone. Also, kynurenic acid and strychnine abolished, respectively, the 5-HT-induced EPSPs and IPSPs. 4. The 5-HT depolarization was associated with increased membrane resistance, was reduced by hyperpolarization and nullified near -100 mV. The extrapolated reversal potential was shifted to a positive direction in elevated [K+]o. 5. The depolarizing response was mimicked by the 5-HT2 receptor agonist (+2-)-1(2,5-dimethyoxy-4-iodophenyl)-2-aminopropane hydrochloride (DOI) and blocked by 5-HT antagonists methysergide and cyproheptadine and by 5-HT2 antagonists ketanserin and spiperone; methiothepin and MDL 72222 were without effect. 6. The 5-HT hyperpolarization was associated with decreased membrane resistance. The 5-HT1A agonist 8-hydroxy-2-(di-N-propylamino) tetralin hydrobromide (8-OH-DPAT) mimicked the hyperpolarizing response. 7. Single or repetitive (10-30 Hz) electrical stimuli elicited in about 30% of MNs, in addition to a fast EPSP, a slow EPSP with electrophysiological characteristics similar to that of 5-HT induced depolarization. Methysergide and spiperone abolished the slow EPSPs evoked in some of these MNs. 8. It is suggested that 5-HT, acting on 5-HT2 and 5-HT1A receptors, depolarizes and hyperpolarizes the MNs by decreasing and increasing K+ conductance. Additionally, 5-HT activates, via 5-HT2 receptors, excitatory and inhibitory interneurones, thereby indirectly affecting the activity of MNs. More importantly, 5-HT released from intraspinal nerves appears to be the mediator of a slow EPSP in a population of MNs.

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Interactions of combined antidepressants which occur in man were reproduced in rats pretreated with phenelzine, features elicited including myoclonic phenomena, an augmented lower limb flexor reflex, muscle fasiculation and fatalities, particularly with combinations incorporating 5-hydroxytryptamine (5-HT) re-uptake inhibitors. Combinations of antidepressants included phenelzine with 5-HT re-uptake inhibitors (paroxetine, fluoxetine, clomipramine); with "mixed" re-uptake inhibitors affecting 5-HT and noradrenaline (imipramine, amitriptyline); with noradrenaline re-uptake inhibitors (desipramine, maprotiline, nisoxetine) and with dopamine re-uptake inhibitors (benztropine, nomifensine). Myoclonic phenomena such as forelimb flexor-extensor movements, head and body twitches, occurred in phenelzine pretreated rats after paroxetine, fluoxetine, clomipramine, imipramine, amitriptyline and desipramine. Wet dog shakes, the most intense phenomenon, were obtained only after paroxetine, fluoxetine, clomipramine and imipramine. Myoclonic features were prevented when pretreatment included p-chlorophenylalanine but were unaffected when this incorporated alpha-methyl-p-tyyrosine; there were attenuated by methysergide, cyproheptadine, clozapine or pimozide. The myoclonic phenomena were reproduced by combination of 5-hydroxytryptophan but not L-3,4-dihydroxyphenylalanine with clomipramine. Electrocortical changes observed included 2-4 Hz, 5-8 Hz, large amplitude potentials unrelated to the myoclonic incidents and unaffected by sensory stimulation. Following phenelzine, brain monoamine oxidase (MAO) A inhibition was 99% and that of MAO B, 88%; 5-HT concentration was significantly elevated in the cortex and hypothalamus, as was hypothalamic noradrenaline. Peak and basal tensions of a lower-limb flexor reflex were elevated in phenelzine pretreated spinal rats by fluoxetine, paroxetine, clomipramine and imipramine, effects attenuated by cyproheptadine. Forelimb flexor-extensor movements and body twitches were elicited by fluoxetine and paroxetine in phenelzine pretreated spinal rats in the presence of electrical stimulation of the central stump of a divided posterior tibial nerve. Pressor responses were observed in phenelzine pretreated spinal rats given 5-HT re-uptake inhibitors, "mixed" re-uptake inhibitors and those affecting noradrenaline re-uptake; ECG anomalies occurred in such rats given clomipramine.

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Loratadine, given as an adjunct to standard asthma therapy, has little if any role to play in the treatment of moderate-to-severe asthma.

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The reaction of a patch test is not hampered by doubling dose of desloratadine. The anti-inflammatory effects of desloratadine on patch test reaction may be limited.

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This study was undertaken to assess the effects of coadministration of desloratadine or fexofenadine with azithromycin on pharmacokinetic parameters, tolerability, and electrocardiographic (ECG) findings.

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This study was undertaken with the objective of evaluating the pharmaceutical and chemical equivalence of some commercially available loratadine tablets, and offers a possible explanation for the therapeutic failure of the drug products.

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The semi-aerobic landfill is a widely accepted landfill concept in Japan because it promotes stabilization of leachates and waste via passive aeration without using any type of mechanical equipment. Ambient air is thought to be supplied to the landfill through a perforated pipe network made of leachate collection pipe laid along the bottom and a vertically erected gas vent. However, its underlying air flow path and driving forces are unclear because empirical data from real-world landfills is inadequate. The objective of this study is to establish scientific evidence about the aeration mechanisms and air flow path by an on-site survey of a full-scale, semi-aerobic landfill. First, all passive vents located in the landfill were monitored with respect to temperature level and gas velocity in different seasons. We found a linear correlation between the outflow rate and gas temperature, suggesting that air flow is driven by a buoyancy force caused by the temperature difference between waste in the landfill and the ambient temperature. Some vents located near the landfill bottom acted as air inflow vents. Second, we conducted a tracer test to determine the air flow path between two vents, by injecting tracer gas from an air sucking vent. The resulting slowly increasing gas concentration at the neighboring vent suggested that fresh air flow passes through the waste layer toward the gas vents from leachate collection pipes, as well as directly flowing through the pipe network. Third, we monitored the temperature of gas flowing out of a vent at night. Since the temperature drop of the gas was much smaller than that of the environment, the air collected at the gas vents was estimated to flow mostly through the waste layer, i.e., the semi-aerobic landfill has considerable aeration ability under the appropriate conditions.

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Data from a national pharmacy benefit management organization covering lives throughout the United States were used. The analysis included a comparison of the before and after change in prescription utilization and cost for plan sponsors that instituted 1 of 3 second-generation antihistamine (SGA) benefit responses: made no change, moved SGAs to the third tier, or restricted SGA benefits through a requirement for prior authorization. Multivariate regression analysis was used to control for differences across the study groups.

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A total of 351 patients were enrolled into this 4-week, double-blind, double-dummy, randomized, parallel group study. Patients received either TAA aqueous nasal spray (220 microg) or loratadine (10 mg) once daily. Efficacy variables were rhinitis symptom changes from baseline, physician global evaluations, and the patient dropout rate due to insufficient treatment effect. Safety and quality of life also was evaluated.

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Histamine and leukotrienes act to exert numerous local and systemic effects that contribute to the pathophysiology of allergic rhinitis. The aim of these experiments was to evaluate the nasal decongestant effects of loratadine and montelukast alone and in combination in a feline model of nasal congestion. We also studied the decongestant actions of the alpha-agonist adrenergic agonist D-pseudoephedrine with and without desloratadine.

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A case of disseminated cryptococcosis with oral, pulmonary, and cutaneous manifestations is described in an eleven-year-old Siamese cat. Marked clinical improvement was noted 2-months following appropriate antifungal therapy. A review of disseminated cryptococcosis and the oral manifestations of fungal disease are provided.

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The availability of human corticotropic hormone, together with sensitive methods of measuring ACTH and cortisol have recently made possible studies on the mode of secretion of these hormones, secreted episodically and parallel in man, and exogenous factors modulating their liberation. Time of day, meals, physical activity and stress, lack of sleep and REM sleep all have an influence on the daily rhythm of their secretion. Phenytoin, ketoconazole, and cyproterone acetat modify the secretion of cortisol; opiates and diazepam inhibit that of ACTH. The liberation of CRH and ACTH is stimulated by the appetite suppressant, serotonin, and inhibited by the appetite-stimulating antagonist cyproheptadine and by glucocorticoids.

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Citalopram increased plasma PRL and cortisol in a dose-related manner. Cyproheptadine lowered baseline PRL and cortisol but did not attenuate the endocrine responses to citalopram. Citalopram infusions were well-tolerated.

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The effects on body temperature of intracerebroventricular and intraperitoneal sodium salicylate were evaluated in anesthetized and nonanesthetized, nonrestrained rats. Also, the effects of various neurotransmitter receptor blocking drugs were evaluated on salicylate-induced hypothermia of nonanesthetized animals. Sodium salicylate, 150-350 mg/kg induced a dose-related hypothermia of unanesthetized animals. However, in anesthetized animals, marked hyperthermia was observed. In unanesthetized, unrestrained rats, intracerebroventricular administration of 1.0 mg/h salicylate caused greater hypothermia than peripheral administration of salicylate, 350 mg/kg. Salicylate hypothermia was unaffected by para-chlorophenylalanine, cyproheptadine, or naloxone, and was only partially inhibited by pimozide. These results strongly suggest a potent direct action of salicylate within the central nervous system to induce hypothermia, and suggest possible involvement of dopaminergic neurons in this process.

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Various in vitro models have been developed to study ischemia and/or hypoxia. In the present experiment, we examined whether hypoxia/hypoglycemia (ischemia) in rat hippocampal slices reduced the 2-deoxyglucose (2-DG) uptake and CA1 field potentials evoked by stimulation of Schaffer collaterals. Autoradiograms revealed that ischemia for 15 or 20 min reduced 2-DG uptake in the stratum radiatum of the CA1 and the dentate gyrus. Similarly, the CA1 field potentials of slices exposed to ischemia for 15 and 20 min decreased by about 70 and 90% after a 6-h washout. In the second experiment, we evaluated the neuroprotective effect of the 5-HT1A receptor agonists 8-OH-DPAT and buspirone, and the 5-HT2 receptor antagonists cyproheptadine, mianserin and ketanserin on deficits of 2-DG uptake and Schaffer-CA1 field potentials induced by ischemia. The 5-HT1A receptor agonists and 5-HT2 receptor antagonists exhibited significant neuroprotective actions against ischemia-induced deficits. Therefore, impairments of 2-DG uptake and CA1 field potentials induced by ischemia may be good markers of ischemia-induced functional deficits. The attenuating action of 5-HT1A receptor agonists and 5-HT2 receptor antagonists were assessed using this model of ischemia.

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Superfusion of thyrotropin-releasing hormone (TRH) in neonatal rat spinal cord in vitro produced dose (0.01-1.00 microM) dependent potentiation of monosynaptic reflex (MSR) which was maximum (44% of control) at 1 microM of TRH. But no ventral root depolarization was observed with TRH (1 microM) although potassium concentration out side ([K+]0) when increased produced a depolarization at the magnitude of 0.2 mV/mM of [K+]0. TRH-induced potentiation of MSR was not altered in spinal cords, obtained from the animals pretreated with 5,7-dihydroxytryptamine or 6-hydroxydopamine. Neither serotonin antagonists (spiperone, ketanserin, cyproheptadine or 3-troponyl-indole-3-carboxylate) nor adrenergic antagonists (phentolamine or haloperidol) could attenuate TRH-induced potentiation. Inhibition of MSR observed in the spinal cord elicited by stimulating the adjacent dorsal root was unaffected by TRH. The results suggest that, TRH potentiates MSR by directly acting on the motoneurons, without involving presynaptic serotonergic or catecholaminergic neuronal systems or the disinhibition of pre- or post-synaptic inhibition in the spinal cord.

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Serum PRL, TSH, T3 and T4 were estimated in the basal state and following iv bolus injection of 100 micrograms synthetic thyrotropin releasing hormone before and 7 days after cyproheptadine treatment in 5 healthy adult males. Only the PRL response to TRH was augmented after cyproheptadine. This is perhaps related to the antidopaminergic effect of cyproheptadine.

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When compared with desloratadine and placebo, Ze 339 shows better efficacy in relieving nasal obstruction symptoms and inhibiting critical components of the chemokine network and as such represents a novel symptomatic and possible prophylactic treatment for allergic rhinitis.

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C-fiber reflex were recorded from an ipsilateral S1 ventral root in the acute decerebrate spinal (T10) cat after stimulation of the superficial peroneal nerve. L-Tryptophan, infused in a dose of 150 mg/kg, increased the C-fiber reflex to 210% (S.E.M. +/- 30.1%) of control. This effect was antagonized by cyproheptadine, 0.5 mg/kg. L-Tryptophan increased the C-fiber reflex to 176% (S.E.M. +/- 13.0%) of control after p-chlorophenylalanine pretreatment. Pretreatment of the cats with the decarboxylase inhibitor alpha-methyldopa, 100 mg/kg, 30 minutes before infusion, antagonized the facilitatory effects of L-Tryptophan. L-Tryptophan, 150 mg/kg, had no effect on the monosynaptic or short latency polysynaptic reflexes. 5-Hydroxytryptophan, 20 mg/kg, had erratic effects on the C-fiber reflex producing both facilitation and depression which were not statistically significant. The recovery of tryptamine from brain perfusates, after perfusion of the anterior cerebellum and pons, with a modified Gaddum push-pull cannula, decreased across time. L-Tryptophan caused a slight increase in tryptamine release which was not statistically significant, whereas in cats pretreated with p-chlorophenyl alanine, a significant increase in tryptamine release was seen.

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The present study was performed to determine whether pharmacological blockade of serotonin receptors would counteract digitalis-induced ventricular arrhythmias. The effect of the serotonin receptor blocking drugs, methysergide, cinansersin, and cyproheptadine on ventricular arrhythmias produced by ouabain was studied in anesthetized dogs. Each of the three serotonin receptor blocking drugs given as a bolus i.v. injection of 1.5--3.0 mg/kg produced an antiarrhythmic effect. In addition, methysergide administered in the above doses to cats intoxicated with deslanoside, restored an abnormal ventricular arrhythmia to either sinus or junctional rhythm. Methysergide, administered to cats intoxicated with deslanoside but pretreated with p-chlorophenylalanine, exerted an antiarrhythmic effect in less than half of the animals tested. These data indicate that serotonin antagonists are effective in counteracting digitalis-induced ventricular arrhythmias and support the notion that a serotonergic mechanism may be mediating the arrhythmogenic effect of digitalis.

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We report the case of a patient who developed jaundice after receiving cyproheptadine for 29 days. Complete recovery occurred within 3 months after cyproheptadine withdrawal. Analysis of 3 previously reported cases and this observation shows that cyproheptadine-induced hepatitis is uncommon. Hepatitis occurs within the first month of treatment and is of the cytolytic or mixed-pattern type. Jaundice is constant. Most often, recovery occurs quickly after the discontinuation of cyproheptadine. However, acute hepatitis can be followed by prolonged anicteric cholestasis.

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Articles and abstracts pertaining to desloratadine were considered for inclusion, with emphasis on randomized, placebo-controlled, double-blind trials.

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Headshaking is a maturity onset condition with the most commonly reported clinical signs being 'flipping' of the nose, nose rubbing, snorting or sneezing, and acting like a bee is flying up the nostril. A questionnaire was completed by owners of 31 horses with headshaking syndrome. The history, time of onset, clinical presentation and treatment of this condition were reported. Headshaking appeared to be light-stimulated in approximately 60% of the horses. The condition is seasonal and recurring in the majority of horses. Treatment with cyproheptadine produced improvement of symptoms in 76% of cases. The clinical signs are suggested to be compatible with neuropathic pain producing itching, tingling or electric like sensations in the face and muzzle area of affected horses.

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To perform a critical evaluation of the more recent H1 antihistamines and the various terms used to describe them, based on a review of evidence on their role in the treatment of allergic disorders.

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The present study aims to investigate the effects of prednisolone on the pharmacokinetics of orally and intravenously administered loratadine in rats. A single dose of loratadine was administered orally (4 mg/kg) and intravenously (1 mg/kg) in the presence or absence of prednisolone (0.2 or 0.8 mg/kg). Compared to the oral control group, prednisolone (0.2 mg/kg, p < 0.05; 0.8 mg/kg, p < 0.01) significantly increased the area under the plasma concentrationtime curve of orally administered loratadine by 54.0-96.4%. After oral administration, the peak plasma concentration of loratadine was significantly (0.2 mg/kg, p < 0.05; 0.8 mg/kg, p < 0.01) increased by 20.9-65.3% in the presence of prednisolone. Consequently, the relative bioavailability of loratadine was increased by 1.54- to 1.96-fold. Compared to the intravenous control group, the presence of prednisolone significantly (0.8 mg/kg, p < 0.05) increased the area under the plasma concentration-time curve of loratadine. Prednisolone enhanced the oral bioavailability of loratadine in this study. The enhanced bioavailability of loratadine may be due to inhibition both cytochrome P450 3A4-mediated metabolism and the efflux pump P-glycoprotein (P-gp) in the intestine and/or liver by the presence of prednisolone.

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periactin drug class 2017-09-21

The findings support the supposition that monoaminergic brainstem pathways may buy periactin be disinhibited following stroke, thereby resulting in increased delays in muscle relaxation.

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It was concluded that the antihistamine-containing syrup reduced the hardness of primary enamel and that, in this experiment, the use of fluoride dentifrice was able to buy periactin diminish this erosive effect.

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The injection of antigen into the peritoneal cavity of actively sensitised mice produced an increase in the number of neutrophils in peritoneal washings collected 4 h later but after 1 day the numbers had returned to control levels. The increase in numbers of mononuclear cells and eosinophils in the peritoneal washings peaked at 2 days and persisted for at least 5 days. Dosing the mice with phenidone, a dual inhibitor of the cyclo-oxygenase and lipoxygenase pathways of arachidonic acid metabolism, potentiated the neutrophil infiltration at 4 h but had no significant effect upon the subsequent mononuclear cell and eosinophil infiltration. In contrast, treatment with the corticosteroid, dexamethasone, reduced the infiltration by all three types of cells, providing further evidence that the corticosteroids can inhibit immune-induced cellular infiltrations by mechanisms other than the inhibition of arachidonic acid metabolism. Isoprenaline, given to the mice before antigen challenge, had no effect on the subsequent neutrophil infiltration, but repeated doses did buy periactin inhibit the mononuclear cell and eosinophil infiltration measured 4 days later. Aminophylline, disodium cromoglycate and cyproheptadine had no effect upon the cellular changes.

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These findings suggest that a neural reflex or systemic allergic inflammation is responsible for the sinus inflammatory buy periactin response and that this inflammatory response might play a role in the development of rhinosinusitis in allergic subjects.

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Available data do not support the superiority of non-antipsychotic drugs vs. placebo for cognitive enhancement in schizophrenia. Preliminary results indicate mirtazapine, mianserine, lamotrigine, tandospirone, cyproheptadine, valacyclovir and omega-3 fatty buy periactin acids as the most promising compounds, however no definitive conclusions can be drawn in the light of small sample size studies.

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Thirty patients with perennial allergic rhinitis were evaluated, 26 males and 4 females (mean age 26+/-7.1 years). All of them received either desloratadine (5 mg/ buy periactin daily) or levocetirizine (5 mg/daily) or placebo for 4 weeks. The study was double-blind, parallel-group, placebo-controlled, and randomized. Total symptom score (including: rhinorrhea, nasal itching, sneezing, and nasal obstruction) was assessed before and after treatment. Rhinomanometry and decongestion test, nasal lavage, and nasal scraping were performed in all subjects before and after treatment. Eosinophils were counted by conventional staining; IL-4 was measured by immunoassay of fluids recovered from nasal lavage.

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Increased dosing of nonsedating antihistamines is recommended by the current European Academy of Allergology and Clinical Immunology/Global Allergy and Asthma European Network/European Dermatology Forum guidelines on patients with acquired cold urticaria (ACU) who do not respond satisfactorily to buy periactin the standard dose. Prospective data supporting this recommendation are scant.

periactin 10 mg 2016-11-03

Superfusion of hemisected lumbar spinal cord of the neonatal rat with solutions containing 10(-6) to 10(-3) M 5-hydroxytryptamine (5-HT) elicited depolarizations of graded amplitude which were recorded from motorneurons through a ventral root. Maximum responses (amplitude 1.0 +/- 0.1 mV, mean +/- SEM, n = 30) were evoked by 10(-4) M 5-HT. Repeated concentration-response curves could be determined from the same preparation. There was no involvement of 5-HT2 receptors in the depolarizing response to 5-HT, since neither ritanserin nor ICI 169, 369 showed any antagonist action. Amongst agents with activity at 5-HT1A sites, the selective 5-HT1A receptor agonist, 8-hydyroxy-2-(di-N-propylamino) tetralin (8-OH-DPAT), neither mimicked the action of 5-HT nor antagonised it, while spiperone (10(-8)-10(-7 M) antagonised responses to 5-HT in a concentration-related manner. Responses to 10(-4) M noradrenaline, used as a control depolarizing agent, were unaffected by spiperone. The onset of blockade by spiperone was slow, 1 hr being required for equilibration of the tissue with antagonist. The blockade was surmountable by larger concentrations of 5-HT. Concentration-response curves to 5-HT were shifted to the right in an approximately parallel manner by spiperone. The dose ratios measured from these curves at the EC50 level, yielded an apparent pA2 of 8.24 +/- 0.14 (mean +/- SEM, n = 15), although the Schild plot of the data had a slope less than unity. The lack of activity of the buy periactin selective 5-HT1B receptor agonist, RU 24969, and the 5-HT1B receptor antagonists, (+/-) cyanopindolol and quipazine, indicated that 5-HT1B receptors were not involved in the 5-HT response of motorneurones to 5-HT. Mesulergine, metergoline and cyproheptadine also antagonised responses of motorneurones to 5-HT, producing a surmountable blockade. Mesulergine (10(-8), 3 x 10(-8) and 10(-7) M caused a progressive rightward shift of the concentration-response curves, but 10(-7) M depressed the maximum response to 5-HT. Responses to noradrenaline were not affected by these concentrations of mesulergine. The apparent pA2 for blockade of 5-HT responses by mesulergine, calculated from experiments in which there was a parallel displacement of the concentration-response curves, was 8.75 +/- 0.11 (mean +/- SEM, n = 10).(ABSTRACT TRUNCATED AT 400 WORDS)

periactin appetite pills 2017-12-11

The two alpha-methylated tryptamine derivatives, 5- (5-FMT) and 6-fluoro-alpha-methyltryptamine (6-FMT), rapidly induced a head-twitch response (HTR) in mice. Two derivatives that lack the methyl group in their chemical structures, 5- (5-FT) and 6-fluorotryptamine (6-FT), did not induce the HTR. The induced HTR was depressed by pretreatment with cycloheptadine, p-chlorophenylalanine or fluoxetine, but was potentiated by 5,7-dihydroxytryptamine. Both 5- and buy periactin 6-FMT increased brain 5-HT levels in hypothalamus, hippocampus, brainstem, striatum and cortex. 5-FMT decreased the levels of 5-hydroxyindoleacetic acid in those regions, but 6-FMT caused a significant decrease in only the hypothalamus and cortex. The two methylated derivatives inhibited mouse brain MAO-A activity more selectively than non-methylated derivatives. The results suggest that the HTR induced by 5- and 6-FMT may result from increased activity of central 5-HT neurons, probably due to increased 5-HT levels after MAO-A inhibition. This probably results in release of 5-HT with a concomitant increased interaction with postsynaptic 5-HT2 receptors. The present results also indicate the importance of the methyl group to selective MAO-A inhibition by the substrate-analogues tested, and the concomitantly induced animal behavior.

periactin pediatric dosage 2016-05-10

The selectivity, peripheral vs. central actions, of the antidopaminergic agent L-646,462 was assessed in two ways. First, elevation of prolactin in serum (peripheral) and homovanillic acid in the striatum were measured in rats. L-646,462 buy periactin was found to have a central/peripheral activity ratio of 143, whereas comparable values derived for haloperidol, metoclopramide and domperidone were 1.4, 9.4 and 1305, respectively. Second, the ID50 values required to block apomorphine-induced emesis in beagles (peripheral receptor-mediated response) were compared with those required to block apomorphine-induced stereotypy (central receptor-mediated response) in rats. Central/peripheral ID50 ratios of 234, 9.2, 129 and 7040 were obtained, respectively, for L-646,462, haloperidol, metoclopramide and domperidone. The selectivity of L-646,462 for peripheral serotonin (5-HT) receptors in rats was determined by measuring its effectiveness in blocking 5-HT-induced paw edema (peripheral response) and 5-hydroxytryptophan-induced head twitch (central response); a ratio of 114 was obtained. This value agrees nicely with the ratio of 143 derived in the rat ( vide supra) for peripheral selectivity for dopamine receptors. L-646,462 is, therefore, selective in vivo, preferentially blocking dopamine and 5-HT receptors located outside the blood-brain barrier. With regard to dopamine-receptors, L-646,462 was about equipotent and more selective than metoclopramide, while being less potent and less selective than domperidone. Unlike metoclopramide or domperidone, L-646,462 also possessed a reasonably potent 5-HT receptor antagonist effect in vivo.(ABSTRACT TRUNCATED AT 250 WORDS)

periactin buy 2015-01-16

The efficacy of pharmacological interventions used to treat canine atopic dermatitis, excluding fatty acid supplementation and allergen-specific immunotherapy, was evaluated based on the systematic review of prospective clinical trials published between 1980 and 2002. Studies were compared with regard to design characteristics (randomization generation and concealment, masking, intention-to-treat analyses and quality of enrolment of study subjects), benefit (improvement in skin lesions or pruritus scores) and harm (type, severity and frequency of adverse drug events) of the various interventions. Meta-analysis of pooled results was not possible because of heterogeneity of the drugs evaluated. Forty trials enrolling 1607 dogs were identified. There is good evidence for recommending the use of oral glucocorticoids and cyclosporin for the treatment of canine atopic dermatitis, and fair evidence for using topical triamcinolone spray, topical tacrolimus lotion, oral pentoxifylline or oral misoprostol. Insufficient evidence is available for buy periactin or against recommending the prescription of oral first- and second-generation type-1 histamine receptor antagonists, tricyclic antidepressants, cyproheptadine, aspirin, Chinese herbal therapy, an homeopathic complex remedy, ascorbic acid, AHR-13268, papaverine, immune-modulating antibiotics or tranilast and topical pramoxine or capsaicin. Finally, there is fair evidence against recommending the use of oral arofylline, leukotriene synthesis inhibitors and cysteinyl leukotriene receptor antagonists.

periactin dosage 2015-02-05

Cyproheptadine had a potent inhibitory effect on the proliferation of HepG2 and Huh-7 cells but minimal toxicity in normal hepatocytes. Cyproheptadine induced cell cycle arrest in HepG2 cells in the G1 phase and in Huh-7 cells at the G1/S transition. The cyproheptadine-induced G1 arrest in HepG2 cells was associated with an increased expression of HBP1 and p16, whereas buy periactin the G1/S arrest in Huh-7 cells was associated with an increase in p21 and p27 expression and a dramatic decrease in the phosphorylation of the retinoblastoma protein. Additionally, cyproheptadine elevated the percentage of Huh-7 cells in the sub-G1 population, increased annexin V staining for cell death, and raised the levels of PARP and its cleaved form, indicating induction of apoptosis. Finally, cyproheptadine-mediated cell cycle arrest was dependent upon the activation of p38 MAP kinase in HepG2 cells and the activation of both p38 MAP kinase and CHK2 in Huh-7 cells.

periactin 12 mg 2017-09-22

Our study revealed that loratidine, a histamine-1 receptor blocker, improves ischemic parameters of EST when given buy periactin as additive therapy to a routine anti-ischemic regimen during the sub-acute phase of myocardial infarction.

buy periactin generic 2016-08-02

The teratogenicity of cyproheptadine HCL (Periactin) was studied in 3 groups of pregnant rats which received respectively 0.5 mg/kg/day, 2.5 mg/kg/day and 5 mg/kg/day cyproheptadine subcutaneously and in a control group Vermox Online Pharmacy of pregnant rats which received 0.2 ml/day of the solvent normal saline. Higher doses were toxic to pregnant rats. There was no significant difference in the birth rate, foetal resorption rate and malformation rate between the 4 groups. Moreover, there was no significant difference between average weights, average foetal placental weights and male/female ratio in the experimental and control foetuses. It is concluded that cyproheptadine is devoid of any teratogenic effect in rats.

periactin pediatric dose 2016-03-11

Log-transformed pharmacokinetic parameters [peak plasma concentration (C(max)) and area under the curve (AUC)], time to maximum concentration Betnovate Cream Buy , elimination half-life and electrocardiographic (ECG) parameters.

periactin syrup dosage 2016-09-01

Atomic absorption spectrometry (AAS) and colourimetric methods have been developed for the determination of pizotifen (I), ketotifen (II) and loratadine (III). The first method depends on the reaction of the three drugs (I); (II) and (III) with cobalt thiocyanate reagent at pH 2 to give ternary complexes. These complexes are readily extracted with organic solvent and estimated by indirect atomic absorption method via the determination of the cobalt content in the formed complex after extraction in 0.1 M hydrochloric acid. It was found that the three drugs can be determined in the concentration ranges from 10 to 74, 12 to 95 and 10 to 93 microg ml(-1) with mean percentage recovery of 99.71+/-0.87, 99.70+/-0.79 and 99.62+/-0.75%, respectively. The second method is based on the formation of orange red ion pairs as a result of the reaction between (I); (II) and (III) and molybdenum thiocyanate with maximum absorption at 469.5 nm in dichloromethane. Appropriate conditions were established for the colour reaction. Under the proposed conditions linearity was obeyed in the concentration ranges 3.5-25, 5-37.5 and 2.5-22.5 microg ml(-1) with mean percentage recovery of 99.60+/-0.41, 100.11+/-0.43 and 99.31+/-0.47% for (I): (II) and (III), respectively. The third method depends on the formation of radical ion using 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ). The colour formed was measured at 588 nm for the three drugs (I); (II) and (III), respectively. The method is valid in concentration range 10-80 microg ml(-1) with mean percentage recovery 99.75+/-0.44, 99.94+/-0.72 and 99.17+/-0.36% for (I); (II) and (III), respectively. The proposed methods were applied to the analysis of Asacol 800mg Prices pharmaceutical preparations. The results obtained were statistically analysed and compared with those obtained by applying the official and reference methods.

periactin overdose treatment 2016-04-13

In human cerebral cortex slices noradrenaline, isoproterenol (a beta-adrenergic agonist), dopamine, apomorphine (a dopaminergic agonist), and serotonin stimulated cyclic AMP formation: noradrenaline greater than or equal to isoproterenol greater than dopamine = apomorphine = serotonin. Clonidine (and alpha-adrenergic agonist) was ineffective in stimulating cyclic AMP formation in temporal cortex slices. The stimulatory effect of noradrenaline and isoproterenol was blocked by propranolol (a beta-adrenergic blocker) but not by phentolamine (an alpha-adrenergic blocker). Pimozide (a selective dopaminergic antagonist) inhibited the increase of cyclic AMP formation induced by dopamine or Feldene Dosage Forms apomorphine but not that induced by noradrenaline, isoproterenol, or serotonin. Neither propranolol or phentolamine had any effect on dopamine- or serotonin-stimulated cyclic AMP formation. Chlorpromazine blocked the increase of cyclic AMP formation induced by noradrenaline, dopamine or serotonin, while cyproheptadine, a putative central serotonergic antagonist, was ineffective. These observations suggest that there may be at least two monoamine-sensitive adenylate cyclases in human cerebral cortex which have the characteristics of a beta-adrenergic and a dopaminergic receptor, respectively, and also possibly a serotonergic receptor.

periactin generic brand 2017-02-16

We investigated the effects of several agents on the established itching model in NC/Nga mice, model of atopic dermatitis-like disease, to elucidate related characteristics. The number of spontaneous scratching behaviors (the duration time is over 1.5 s) by NC/Nga mice with severe Avapro Generic Alternative skin lesions was measured before and after administration of agents for 24 h. The scratching behavior by NC/Nga mice was significantly suppressed by administration of dexamethasone or tacrolimus, but not by chlorpheniramine maleate or cyproheptadine hydrochloride. These results suggest that this method shows a good correlation with the effectiveness of drugs prescribed for itching in humans with atopic dermatitis, and histamine and serotonin do not play an important role in causing the scratching behavior seen by NC/Nga mice. The scratching behavior was also significantly suppressed by naloxone hydrochloride, dibucaine or capsaicin. These results suggest that the scratching behavior seen in this model is caused by itching signal transmission through neural system. Furthermore, we found that theophylline, pinacidil or limaprost had scratching suppression effects in this model.

periactin buy uk 2016-04-01

A series of cyproheptadine related compounds was synthesized and tested pharmacologically. In comparison with cyproheptadine, these compounds do not have a central ring and some contain groups other than N-methyl. Synthesis was carried out with low-valent titanium to generate the exocyclic double bond. The serotoninergic activity of the compounds was determined by standard determination of pA2 (-log of the motor concentration Imodium 80 Mg of antagonist required to maintain a constant response when concentration of agonist is doubled) for the inhibition of serotonin-induced contractions in rat stomach fundus. Two of the nitrogen-containing compounds were active, but their activities were lower than that of cyproheptadine. Structure-activity relationships were studied by Mulliken net charges, molecular electrostatic potentials, and conformational analysis; activities are better correlated with electrostatic potentials than with net charges. The decrease in potency of the open cyproheptadine analogues may be due to "dilution" of the active conformer as the result of their conformational flexibility.

periactin migraine reviews 2015-11-30

The effects of antiserotonin preparation on the development of the connective tissue in the lungs Zoloft Drug Class , reaction of the blood system, and the content of hemopoietic stem cells, committed hemopoietic and stromal precursors in BM, spleen, and peripheral blood were studied on C57Bl/6 mice with experimental toxic lung fibrosis caused by intratracheal administration of bleomycin. It was demonstrated that the antiserotonin drug inhibits the growth of the connective tissue in the lungs and attenuates the course inflammatory process primarily due to inhibition of the granulocytic lineage, which was related to suppression of hemopoietic stem cells. Reduced content of the stromal precursor cells in BM and spleen was noted.