The CDC and FDA have relabeling standards in place following testing of medications of stockpiles for the US military saving the US taxpayer MILLIONS in restocking fees to replace perfectly FINE medications.
IF YOU HAVE EVIDENCE to show that Doxycycline, tetracyclines or ANY other antibiotic in pill format goes BAD (or can somehow hurt your liver 18 months from now MORE than it can now) - by all means, list them here. I have read many studies and there is NO current mediations that poses a health risk in pill form after the expiration date EITHER by the active ingredients NOR by its inactive ingredients as well.
--- Excerpt from a Wall Street Journal article ---
The program dates to a U.S. effort begun in 1981 to increase military readiness by buying large quantities of drugs and medical devices for the armed forces. Four years later, more than $1 billion of supplies had been stockpiled. The General Accounting Office audited Air Force troop hospitals in Europe and found many supplies at or near expiration. It warned that by the 1990s, more than $100 million would have to be spent yearly on replacements.
The Air Force Surgeon General's office asked the FDA if it could possibly extend the shelf life of these drugs. The FDA had the equipment for stability testing. And because it had approved the drugs' sale in the first place, it also had manufacturers' data on the testing protocols. Testing for the Air Force began in late 1985. In the first year, 58 medicines from 137 different manufacturing lots were shipped to the FDA from overseas storage, among them penicillin, lidocaine and Lactated Ringers, an intravenous solution for dehydration. After testing, the FDA extended more than 80% of the expired lots, by an average of 33 months.
In 1992, according to the FDA, more than half of the expired drugs that had been retested in 1985 were still fine. Even now, at least one still is. Such results came as a revelation for Army Col. George Crawford when he took over military oversight of the program in 1997. He is a pharmacist, but "nobody tells you in pharmacy school that shelf life is about marketing, turnover and profits," he says.