How drug expiration dates work

How drug expiration dates work
Credit: American Chemical Society.

Every medicine you buy has an expiration date printed on it somewhere, but does it actually go bad?

We’ve all seen the expiration dates on prescription and over-the-counter medications.

What’s less obvious to us as consumers is how these dates are determined and to what extent medicines actually go bad.

In this video, Reactions explains where drug expiration dates come from:

Reactions is a video series produced by the American Chemical Society and PBS Digital Studios.

The American Chemical Society, the world’s largest scientific society, is a not-for-profit organization chartered by the U.S. Congress.

ACS is a global leader in providing access to chemistry-related information and research through its multiple databases, peer-reviewed journals and scientific conferences. ACS does not conduct research, but publishes and publicizes peer-reviewed scientific studies.

Its main offices are in Washington, D.C., and Columbus, Ohio.

Source: American Chemical Society.