A member asked:

What is the max periode of using chlorpheniramine.?

2 doctors weighed in across 2 answers
Dr. Michael Jones answered

Specializes in Family Medicine

5-7 days: If you're cold symptoms are not improving significantly within 1 week you may be developing a sinus infection or have under controlled allergy syptoms. If this is the case you should be checked out by your doctor.

Answered 3/26/2013

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Chlorpheniramine Rx: Chlorpheniramine is an extremely safe antihistamine which has been in use for a very long time. It is safe to take it indefinitely until you either get side-effects (mostly sleepiness) or until it stops working for you.

Answered 8/9/2018

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