, they are usually still safe to use considerably after the Exp date. They may have lost some
potency - for example, if a 100 mg dose drops to 92% potency, you're still getting 92 mg of the drug dose - would your body even know the difference? Usually not. However, there's another factor: In addition to losing potency, the active ingredient can 'degrade' & SOME degradation products have a certain (usually fairly small) toxicity.