I do not know of a website, but one of the docs I worked for said it
depended on the med. Bp med can go as long as 3 - 6 mos after date. I am not
sure about others.

Kate wrote and asked:

Manufacturers are required to put a date on their products, so
they select the earliest date possible (sell more that way).
There not much research on the actual dates - not much at all.

Diabetes drug/insulin we purchase for the cat has a 1 month
date, but it's good for at least 3 months beyond that date.

... One who says it can't be done shouldn't interrupt the one doing it.
___ Blue Wave/QWK v2.12

Try asking your pharmacist. Also, ask about what the best way to store your
meds so they will last longer. Sometimes, keeping meds in a cool, dark place
will extend their life.