What happens when you take and use expired prescription medicine?

Most medications are still quite potent several years past the expiration date which is given.

According to the study of some 100 medications, they ad still good some 15 years later. Click here >>> www.health.harvard.edu/staying-healthy/drug-expiration-dates-do-they-mean-anything

Read the article as there are certain exceptions. As to the medications you specifically mention, check with your pharmacist.

Oh thank you for this. I've kinda wondered it myself.

The expiration date is the date the guarantee expires. Time has no direct effect on a product unless it is radioactive, alive, or some sort of chemical reaction. For example, biscuit mix contains shortening which absorbs oxygen and becomes rancid. Packaged mix stays good until the package develops a hole, even a very small hole, and oxygen gets in. Canned food stays good until the can swells. Anything packed in a plastic container might absorb gases from the plastic over a period of time.


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Most of the medication info is available online by googling. While googling I found that Cyclobenzaprine is intended for usage for no more than two weeks AT MOST. Generally, these things are stated on the label or were explained when dispensed by your physician. Furthermore it states that using after two weeks it loses its effectiveness. Whether or not you exceed its expiration date is a moot point. If it were me in this situation, I would consult my physician and/or pharmacist.

Thank you. I intend to when I have the time.

As one the time of the posting of this, I just asked someone in the pharmacy department of my local supermarket about taking expired prescription medicine. She told me prescription cyclobenzaprine and naproxen that has expired about a year ago will have lost some potency, but will not make you sick if you take them.

I'm still going to contact my physician about renewing my prescriptions.