Chlorphenamine — Drug Interactions, Alcohol & Pregnancy Guide
Last reviewed: · Source: US FDA drug label database
About Chlorphenamine
Chlorphenamine (Piriton) is a sedating antihistamine for allergies and itching. Unlike modern antihistamines (cetirizine, loratadine), it causes significant drowsiness. Do not drive after taking it.
Also sold as: Piriton, chlorpheniramine
Chlorphenamine and Alcohol
Avoid alcohol with chlorphenamine (Piriton) — this older antihistamine is sedating on its own, and alcohol dramatically increases drowsiness, impairing driving and coordination.
Full guide →Chlorphenamine in Pregnancy
Chlorphenamine (Piriton) is the most-studied antihistamine in pregnancy and is sometimes recommended when modern antihistamines are insufficient — but it causes significant sedation.
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