Hello I have been on
Duragesic Fentanyl transdermal system patches for some time. I recently found one in the bottom of my medicine chest and it expired in April of 2005. Is this still ok to use? What happens to a medicine when it when it passes date? Does it decrease in potency or could it possibly increase? Please help....I would useally throw it away but they are so darn expensive, I would hate to waste one if it was still usable. Anyone with info or experiance with this sort of situation, your help will be much appriecated!
Orrissa Athena