Cyproheptadine Hydrochloride

Perennial and seasonal allergic rhinitis Vasomotor rhinitisAllergic conjunctivitis due to inhalant allergens and foodsMild, uncomplicated allergic skin manifestations of urticaria and angioedema.Amelioration of allergic reactions to blood or plasmaCold urticariaDermatographism As therapy for anaphylactic reactions adjunctive to epinephrine and other standard measures after the acute manifestations have been controlled.

Newborn or Premature Infants This drug should not be used in newborn or premature infants. Nursing Mothers Because of the higher risk of antihistamines for infants generally and for newborns and prematures in particular, antihistamine therapy is contraindicated in nursing mothers. Other Conditions Hypersensitivity to cyproheptadine and other drugs of similar chemical structure. Monoamine oxidase inhibitor therapy (See DRUG INTERACTIONS .)Angle-closure glaucomaStenosing peptic ulcerSymptomatic prostatic hypertrophyBladder neck obstructionPyloroduodenal obstructionElderly, debilitated patients

Pediatric Patients Overdosage of antihistamines, particularly in infants and young children, may produce hallucinations, central nervous system depression, convulsions, respiratory and cardiac arrest, and death. Antihistamines may diminish mental alertness; conversely, particularly, in the young child, they may occasionally produce excitation. CNS Depressants Antihistamines may have additive effects with alcohol and other CNS depressants, e.g., hypnotics, sedatives, tranquilizers, antianxiety agents.

Activities Requiring Mental Alertness Patients should be warned about engaging in activities requiring mental alertness and motor coordination, such as driving a car or operating machinery. Antihistamines are more likely to cause dizziness, sedation, and hypotension in elderly patients (see PRECAUTIONS , Geriatric Use ).