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- What is Periactin, and how does it work (mechanism of action)?
- Is it available as a generic drug?
- Do I need a prescription for this drug?
- What are the uses for Periactin?
- What are the adverse events and side effect of Periactin?
- What is the dosage for Periactin, and how should I take it?
- Which drugs or supplements interact with this medication?
- Is this drug safe to use during pregnancy or while breastfeeding?
- What else should I know about this medication?
What is Periactin, and how does it work (mechanism of action)?
Cyproheptadine (Periactin) is an oral antihistamine used for treating allergic reactions. It works by blocking the effects of histamine and is classified as a first generation antihistamine. Histamine is released by cells of the body during several types of allergic reactions and, to a lesser extent, during some viral infections, such as the common cold. When the histamine binds to receptors on other cells, it stimulates changes within the cells that lead to the release of chemicals that cause sneezing, itching, and increased production of mucus. Antihistamines compete with histamine for cell receptors and bind to the receptors without stimulating the cells. In addition, they prevent histamine from binding and stimulating the cells. Cyproheptadine also blocks the action of acetylcholine (anticholinergic effect) and serotonin, two neurotransmitters that nerves and muscles use to communicate with one another, and it causes drowsiness.
Is it available as a generic drug?
Yes, cyproheptadine is available in generic form.
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