what is periactin used for
What PERIACTIN is used for. PERIACTIN contains cyproheptadine (as cyproheptadine hydrochloride) as the active ingredient. Cyproheptadine belongs to a group of medicines called antihistamines. PERIACTIN is used to relieve the symptoms of allergy; such as hayfever, runny nose, sneezing, and itchy and watery eyes. It also relieves the itchiness associated with some skin problems; such as rash, hives, dermatitis, eczema, mild reactions to insect bites, and chickenpox.
Cyproheptadine has also been used off-label as an appetite stimulant and to treat cyclic vomiting. Cyproheptadine is available by prescription only. Formulations include tablets, oral solutions and syrups in multiple generic forms and under the trade name Periactin.