1 doctor weighed in:

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?

1 doctor weighed in
Dr. John Chiu
Internal Medicine - Allergy & Immunology

In brief: 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.

In brief: 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.
Dr. John Chiu
Dr. John Chiu
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