If it's a proprietary drug under patent, they don't tell the doctors the ingredients.
@Retired_Engineer:
Wow.. did not know that. If it is protected by patent, they should be fine. (until it expires, which I think they all do at some point) IF a Dr, doesn't know what the heck is in it... then they should steer clear of it.The drop in sales will send the message...IMO 
eople also need to be proactive about what they are allergic to... I am REALLY allergic to Penicillin!! Was tested for it as a child so I know for sure! 4951