Posted by Miguel (209.42.192.28) on August 06, 2000 at 23:46:33:
In Reply to: Shelf Life posted by Byron on August 05, 2000 at 20:39:49:
Most drugs have to undergo several development
tests prior to clinical trials and subsequent marketing.
Among those tests there is a stability test, which
consists of making drug solutions and freezing
them. These tests involve taking those samples from the freezer
from time to time, thawing them and putting them through HPLC to test
how their chemical structre may have changed over time.
The tests are conducted over a period of years sometimes.
Frozen drugs are often more stable than cold-kept
or room temterature-mainted. My recommendation is therefore
for you to freeze your stash and only thaw out
the amounts you will use for one week at a time when
you need it. In most cases your drug will be very much
in the same condition as when you originally purchased it, provided
of course that you froze it immediately upon purchase.
Miguel