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    Is viagra safe to take that is two years old? - Drugs.com

    Answers. BA. balbanese 21 Feb 2015. Every prescription med comes with an expiration date, if it's past that then it's best not to put it in your body. +0. CL. closefarhere 21 Feb 2015. Usually any medication over 12 months old is considered expired in both prescription and in age. If the date on the pill bottle is more than 18 months past the ...

    Drug Expiration Dates - Are Expired Drugs Still Safe to Take?

    In a study of over 30 pens that had expired up to 7.5 years earlier, the decrease in epinephrine content was proportional to the number of months past the expiration date. Another small study found that out of 46 autoinjector devices, 80% (37 devices) still retained 90% epinephrine content after a median expiration date of two years.