Cyproheptadine drug data and news

Cyproheptadine drug data, resources, and news articles (when available). Onconews.org provides news on cancer research. This section, which includes profiles on medicines that may or not be cancer-related is in beta form. If things run smoothly we will be releasing a new format late in the summer of 2006.

Generic name Cyproheptadine
Brand Names/Synonyms Cypoheptadine; Cyproheptadiene; Cyproheptadine; Cyproheptadine Hcl; Dibenzosuberonone/Cyproheptadine; Dronactin; Eiproheptadine; MK 141; Periactin; Periactine; Periactinol; Peritol
Indication For treatment of perennial and seasonal allergic rhinitis, vasomotor rhinitis, allergic conjunctivitis due to inhalant allergens and foods, mild uncomplicated allergic skin manifestations of urticaria and angioedema, amelioration of allergic reactions to blood or plasma, cold urticaria, dermatographism, and as therapy for anaphylactic reactions adjunctive to epinephrine.
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Description Not Available
Pharmacology Cyproheptadine is a piperidine antihistamine. Unlike other antihistamines, this drug also antagonizes serotonin receptors. This action makes Cyproheptadine useful in conditions such as vascular headache and anorexia. Cyproheptadine does not prevent the release of histamine but rather competes with free histamine for binding at HA-receptor sites. Cyproheptadine competitively antagonizes the effects of histamine on HA-receptors in the GI tract, uterus, large blood vessels, and bronchial smooth muscle. Most antihistamines possess significant anticholinergic properties, but Cyproheptadine exerts only weak anticholinergic actions. Blockade of central muscarinic receptors appears to account for Cyproheptadine's antiemetic effects, although the exact mechanism is unknown. Cyproheptadine also competes with serotonin at receptor sites in smooth muscle in the intestines and other locations. Antagonism of serotonin on the appetite center of the hypothalamus may account for Cyproheptadine's ability to stimulate appetite. Cyproheptadine also has been used to counter vascular headaches, which many believe are caused by changes in serotonin activity, however it is unclear how Cyproheptadine exerts a beneficial effect on this condition.
Mechanism Of Action Cyproheptadine competes with free histamine for binding at HA-receptor sites. This antagonizes the effects of histamine on HA-receptors, leading to a reduction of the negative symptoms brought on by histamine HA-receptor binding.
Cyproheptadine News
(When available)

Less depressed but also less sexed  Nov 29, 2005
In most cases, lowering the dosage of your medicine works. Cyproheptadine is a prescription drug that may reverse the symptoms. ... - Newsday,

The Aging Equine  Nov 12, 2005
...hypothyroidism and usually will respond well to powdered thyroxin, while horses with pituitary trouble might rally with the help of cyproheptadine or pergolide ... - TheHorse.com,

Vet bills set to fall this November  Sep 16, 2005
...they will now be aware they have options," said Watson, citing an example from the report where a vet charged £109.21 for 30 tablets of Cyproheptadine, a drug ... - Horse & Hound Online,

Idiopathic Intracranial Hypertension Presenting With Psychiatric ...  Sep 24, 2005
...to display the above symptoms despite sequential and/or combined trials with acetazolamide, topiramate, fluoxetine, quetiapine and cyproheptadine over the past ... - Journal of Neuropsychiatry (subscription)

Many meds don't mix with the sun  Sep 21, 2005
Orinase). Antihistamines: Cetirizine (Zyrtec), cyproheptadine (Periactin), diphenhydramine (Bena-dryl), loratadine (Claritin). Anti ... - Pioneer Press,

Woman arraigned on drug charges  Sep 1, 2005
The pills were later determined as cyproheptadine (an antihistamine), quetiapine (for psychotic disorders), carisoprodol (a muscle relaxer), methadone (a pain ... - North Adams Transcript,

Proprietary Chinese medicine recalled  Aug 5, 2005
The sixth, Cyproheptadine, can be bought over the counter. ... Nifedipine can cause headache and dizziness. Cyproheptadine can cause dizziness and drowsiness. ... - News.gov.hk

Acute Akathisia Associated With Quetiapine Use  Jul 6, 2005
8. The anticholinergic agents and antihistamines (such as diphenhydramine and cyproheptadine) have long been used to treat akathisia. ... - Psychosomatics (subscription) <**results**>

Acute Akathisia Associated With Quetiapine Use  Jul 6, 2005
8. The anticholinergic agents and antihistamines (such as diphenhydramine and cyproheptadine) have long been used to treat akathisia. ... - Psychosomatics (subscription)

Age-Defying Equines  Jun 1, 2005
Drug therapy includes antibiotics to manage recurrent infections or pergolide, bromocriptine, and cyproheptadine to treat clinical signs of ECD. ... - TheHorse.com,

The Aging Equine  May 28, 2005
Medications such as cyproheptadine or pergolide are available to control the effects of Cushing's in aged horses; these medications are most effective before ... - TheHorse.com,

Serotonin Syndrome Associated With Linezolid Treatment After ...  Apr 26, 2005
A regimen of cyproheptadine was started, and the mydriasis began to improve after 24 hours. The myoclonus and tachycardia began to improve after 48 hours. ... - Psychosomatics (subscription)

Serotonin Syndrome Associated With Linezolid Treatment After ...  Apr 26, 2005
A regimen of cyproheptadine was started, and the mydriasis began to improve after 24 hours. The myoclonus and tachycardia began to improve after 48 hours. ... - Psychosomatics (subscription)

Practice Guidelines for Management of Migraine in Children and ...  Apr 1, 2005
...therapy led to the following conclusions: flunarizine is probably effective; there are insufficient data concerning cyproheptadine, amitryptyline, divalproex ... - AAP Grand Rounds (subscription)

AAEP Convention 2004: Horseman's Day--Cushings  Feb 14, 2005
The second is cyproheptadine, which suppresses undue releases of cortisone by the adrenal glands. ... Cyproheptadine is given daily, but comes in a tablet form. ... - TheHorse.com,

The Aging Equine  Feb 28, 2005
...hypothyroidism and usually will respond well to powdered thyroxin, while horses with pituitary trouble might rally with the help of cyproheptadine or pergolide ... - TheHorse.com,

Dosage Forms SYRUP;TABLET
Drug_Category Anti-allergic Agents; Gastrointestinal Agents; Antipruritics; Antihistamine derivatives; ATC:R06AX02
Absorption Well absorbed after oral administration.
Interactions Interactions for Cyproheptadine:

MAO inhibitors prolong and intensify the anticholinergic effects of antihistamines. Antihistamines may have additive effects with alcohol and other CNS depressants, e.g., hypnotics, sedatives, tranquilizers, antianxiety agents.

Toxicity Not Available
Organisms Affected Humans and other mammals
Chemical IUPAC Name Not Available
Chemical Formula C21H21N
Molecular Weight 287.398 g/mol
Smiles String CN1CCC(=C2C3=CC=CC=C3C=CC4=CC=CC=C42)CC1
Melting Point 215-217 °C
Water Solubility Soluble
State Solid
LogP/Hphobicity 4.682
Isoelectric Point Not Available
Biotransformation Hepatic (cytochrome P-450 system) and some renal.
Half Life Not Available
Protein Binding [%] 96 to 99%
RxList Link RXlist
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Drug Reference http://www.drugs.com/cons/Cyproheptadine.html
http://www.rxlist.com/cgi/generic2/cyprohept.htm
Drug Type Approved Drug
Accession No APRD00033
CAS Registry Number 129-03-3
KEGG Compound ID Not Available
PubChem ID SID:597387
PharmGKB ID PA449169
SwissProt ID Not Available
GenBank ID Not Available
Drug ID Number [DIN] 2245668

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