Allergy medicine does expire, though depending on the type, it can be effective for years after the expiration date. Here's what you need to know.

The box of prescription drugs had been forgotten in a back closet of a retail pharmacy for so long that some of the pills predated the 1969 moon landing. Most were 30 to 40 years past their expiration ...

Plan B has an expiration date of about four years, but that doesn't mean it's unsafe to take. It just means the pill may be ...

Gerona, a pharmacist; and Cantrell, a toxicologist, knew that the term "expiration date" was a misnomer. The dates on drug labels are simply the point up to which the Food and Drug Administration and ...

Two common naloxone products, Narcan and Evzio, remain chemically stable after their expiration dates, according to new research. Naloxone, the generic name for the drug, is sometimes called a "save ...

EpiPens are used to inject epinephrine to treat serious allergic reactions. It may not be safe or effective to use it after its expiration date. An expired EpiPen might not look any different to one ...