What is the significance of the expiration date on a medication?

The expiration date on a medication is significant because it indicates the time frame during which the medication’s effectiveness is guaranteed by the manufacturer. After this date, the manufacturer cannot ensure that the medication will work as intended, as chemical composition can change over time, potentially making the drug less effective or unsafe to use.

While some medications may still be usable for a time beyond the expiration date, using them could pose risks, thus making the information on the expiration date critical for patient safety and efficacy.