![]() Personally, I won't be using expired doxycycline or tetracycline. I was very surprised to see a memo from the SLEP program dated Sept 2015 extending the expiration of doxycycline 4 years beyond the expiration date. Expired tetracycline has been associated with a kidney disorder called Fanconi syndrome. I have read a lot of data regarding it degradation into potentially toxic byproducts. It has been a much published rule that doxycycline or tetracycline should not be used beyond the expiration date. ![]() It appears that Ciprofloxacin is very stable and maintains it potency for at least 10 years beyond the expiration. The bottom line is that MOST antibiotics are effective long past their expiration date. Based on the results the drugs are given a new expiration date. ![]() Drugs from the stockpiles are submitted for testing for degradation/deterioration. To combat this problem, the Shelf Life Extension Program (SLEP) was developed in 1985 for the DoD in conjunction with the FDA. Replacing these drugs cost the government millions of dollars every year to replace drugs that are perfectly good and effective. They reach an arbitrary date that in the past meant that they had to be discarded. Ciprofloxacin is maintained in the stockpile for a potential anthrax outbreak due to bioterrorism. The Department of Defense maintained millions of dollars worth of antibiotics and other pharmaceuticals in storage for public emergencies like bioterrorism, natural disasters like earthquakes or epidemics. Looks like you can get fresh anyway though. My brain remembers something about ycly and not using past the expiration date and I deleted my post and ran off to do some googling to see if I could pull up more info before I shot off my mouth.
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