Stability of temazepam in blood

The stability of temazepam in blood under different storage temperatures was studied. The drug was found to be very stable over a twelve-month interval when stored at -20 degrees C with a recovery of 82%, while samples stored at 5 degrees C and 25 degrees C showed a significant decrease in their concentration with time. This information can assist the forensic toxicologist with the interpretation of results, particularly in cases where analysis has been delayed.