In 1979, the U.S. Food and Drug Administration began requiring an expiration date on prescription and over-the counter medicines. The expiration date is a critical part of deciding if the product is safe to use and will work as intended. Expired medical products can be less effective or risky due to a change in chemical composition or a decrease in strength. Certain expired medications are at risk of bacterial growth and subpotent antibiotics can fail to treat infections, leading to more serious illnesses and antibiotic resistance. Once the expiration date has passed there is no guarantee that the medicine will be safe and effective. If your medicine has expired, do not use it. The information above is sourced from https://www.fda.gov/drugs/safe-disposal-medicines/dont-be-tempted-use-ex-pired-medicines
