Triprolidine is an over-the-counter antihistamine with anticholinergic properties.

[2] As with many antihistamines, the most common side effect is drowsiness.

[1] Today, Triprolidine is used less frequently and has been replaced in popular medications by other antihistamines like Diphenhydramine, Promethazine, Chlorpheniramine, as well as second generation antihistamines like Loratadine and Fexofenadine.

Triprolidine remains an ingredient in the cold medicine Actifed in many territories.

[3] This drug article relating to the respiratory system is a stub.