A member asked:

If i was.allergic to a pill how long after taking it would i know i took norco (hydrocodone and acetaminophen) but i've took vicidion and lortab before what's the chance of allergy?

A doctor has provided 1 answer
Dr. John Chiu answered

Minutes to hours: If you are allergic to a drug, the reaction usually occurs within minutes and 2 hours. However if the reaction is a rash , it may take several days. Norco (hydrocodone and acetaminophen) is not a highly allergenic drug although you may get side effects from the opiate it contains.

Answered 6/30/2014

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Related Questions

A member asked:

How are norco (hydrocodone and acetaminophen) vs. Lortab different?

A doctor has provided 1 answer