What will happen if i take hydrocodone/acetaminophon 5 that is past its expiration date?

Reduced effect: Taking expired medication may result in reduction of the intended effect of the medication. It also depends on how far past the expiration date the medication is. Most likely, the only thing that would happen is that you may feel it is not as effective at reducing your pain as it was with prior administration.

No issues: You should have the expected outcome with these provided the pills were not soiled, moistened or exposed to excessive heat.