Not too sure where did you learn that 80% part but it is NOT true. Generic medication is supposed to release exactly the same amount of drug as its branded counter-part. Only issue that is more important when it comes to the generic drugs, bioavailability of the drug (your 80% thing) and the time it takes to reach stated bioavailability. Both of these factors are supposed to match the branded version of the drug within the error margins, otherwise such generic is NOT approved by the FDA.
If your doc just agreed to what you stated here, she just doesn't want to spend time with you to explain these factors. If she thinks that this is true, ask her for proof. I would very much like to see it.
Diagnosed March 2007 with left sided UC at the age of 30.
Colazal 9 daily, Imuran, 200mg daily, Vit. B12, 1mg, Multivitamin, 1 tablet daily, Fish oil 2400mg daily, Vit D 2000 IU daily.
Verapamil 240mg for migraine, Migraine episode now at least twice a month,
Ibuprofen 400mg is the only solution (but leads to bleeding). Looking for alternatives.