Every year, drugs have been reached there published expiration dates are thrown away, creating billions of dollars in waste and causing an environmental hazard. Multiple researchers and the US military have proven that drug expiration dates can be extended safely. There is no recorded case of a patient being harmed by the use of an expired drug.

https://www.change.org/p/food-and-drug-administration-reduce-drug-waste-and-environmental-hazards-by-changing-fda-drug-expiration-policy