NY State Drug Unused

Do expired medications lose their potency ?
Examples of common drug products that were tested with no failures included amoxicillin, ciprofloxacin, diphenhydramine, and morphine sulfate injection. Drug expiration extension dates on these products ranged from 12 to 184 months.
These results suggest that many drug products may have extended shelf lives beyond their expiration date. However, it is difficult for any one consumer or health care provider to know which product could have an extended shelf life. The ability for a drug to have an extended shelf life would be dependent upon the actual drug ingredients, presence of preservatives, temperature fluctuations, light, humidity, and other storage conditions. Additionally, the drug lots tested in the SLEP program were kept in their original packaging. Once a drug is repackaged into another container, as often happens in the pharmacy, the shelf-life might decline.
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These medicines have generic versions available or are only available in generic formulations. FDA continually evaluates medicines for safety risks and will update the list as needed .List revised: February 2015.