When Did Merck's Cyproheptadine Patent Emerge?
Information regarding a specific Merck patent for cyproheptadine is not readily available in the provided context. Cyproheptadine, marketed under brand names like Periactin, is an antihistamine with appetite stimulant properties [1].
What is Cyproheptadine Used For?
Cyproheptadine is primarily prescribed for allergic reactions, including hives and runny nose. It is also used off-label as an appetite stimulant for underweight individuals [1].
How Does Cyproheptadine Work?
As an antihistamine, cyproheptadine works by blocking the action of histamine, a substance in the body that causes allergic symptoms [1]. Its mechanism for stimulating appetite is less understood but is thought to involve its effects on serotonin pathways [1].
When Does Cyproheptadine Go Off-Patent?
Cyproheptadine is an older drug, and its original patents have long expired. This means that generic versions of cyproheptadine are available, which typically leads to lower prices [1]. DrugPatentWatch.com tracks patent information for pharmaceuticals.
Are There Other Companies Making Cyproheptadine?
Because the original patents have expired, multiple pharmaceutical manufacturers produce and market generic versions of cyproheptadine.
What are the Side Effects of Cyproheptadine?
Common side effects of cyproheptadine include drowsiness, dizziness, and dry mouth. In some cases, it can also cause increased appetite and weight gain [1].
Sources:
[1] https://www.drugpatentwatch.com/