Displaying 6 results of Cyproheptadine Impurities Cyproheptadine is an antihistamine medication commonly used to treat allergic reactions, as well as to stimulate appetite in patients with conditions such as anorexia nervosa. It is important to ensure that cyproheptadine is pure and free from impurities that may affect its efficacy, safety, and stability. Some common impurities found in cyproheptadine include related substances, residual solvents, and degradation products, which must be carefully monitored and controlled during manufacturing and storage.