Chlorphenamine Chlorphenamine

Chlorphenamine - Definition and Overview


Chlorphenamine.png
Molecular structure of chlorphenamine


Chlorphenamine

(3RS)-3-(4-chlorophenyl)-N,N-dimethyl-
3-(pyridin-2-yl)propan-1-amine
CAS number
132-22-9
ATC code
 ?
Chemical formula C16H19ClN2
Molecular weight 274.8
Bioavailability 25-50%
Metabolism hepatic
Elimination half-life 6.3-23.1 hours
Excretion renal
Pregnancy category Category A (Australia)
Legal status Schedule 3 (Australia)
Routes of administration oral


Chlorphenamine (INN) or chlorpheniramine (USAN, former BAN), commonly marketed as its salt chlorphenamine maleate (CPM), is first-generation antihistamine used in the prevention of the symptoms of allergic conditions such as rhinitis and urticaria.

CPM is one of the main ingredients in many OTC allergy medications, such as Coricidin Cough & Cold (or CCC). Many people use Coricidin recreationally for the dextromethorphan content; however, this is strongly recommended against. In high doses, chlorpheniramine maleate can cause severe allergic reactions and has been linked to at least twelve deaths in the United States.

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