Cyproheptadine hydrochloride anhydrous is a first-generation antihistamine with additional anticholinergic, antiserotonergic, and local anesthetic properties. It is indicted for the 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. As therapy for anaphylactic reactions adjunctive to epinephrine and other standard measures after the acute manifestations have been controlled. 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. Common adverse effects are: sedation, sleepiness (often transient), dizziness, disturbed coordination, restlessness, excitation.

Dibenzosuberone is used for the organic synthesis. Dibenzosuberone derivatives are potent inhibitors of p38 mitogen-activated protein kinase. They may foster a new generation of anti-inflammatory drugs. Dibenzosuberone derivatives are potential tricyclic antidepressants and anti-tumor agents.