Decomposed> I'm under the impression that antibiotics have a pretty limited shelf life.
http://www.survivalistboards.com/showthread.php?t=92040
Every type of medicine has its own particular decay rate. Usually a lot of work is put into getting a minimum of 2 years shelf life in cool dry conditions.
Most antibiotics are among the sensitive and easily denatured medicines. As proteins, or more specifically oligopeptides, they are subject to hydrolyzation, the main form of attack. Heat and moisture are the enemy.
So under tropical conditions, many can go bad in 6 months or less, while lasting a few years in good conditions.
Yeah, I've been in pharma quality control for many years.
Non-biological medicines also vary from sensitive to stable, depending on exact formulation. We have some that indicate shelf life over a thousand years. Of course we can't put that on a label, as every claim must be backed up by full term testing. Others present similar trouble as the antibiotics in being sensitive to heat and moisture.
>>>
Zim.

Mad Poet Strikes Again.