Hello,
Jeanie3 mentioned talking to your doctor or pharmacist about discount programs, which is great, my Dr is always on the lookout for discount programs for me. In addition to that, you should ask your Dr for samples. One of my ADs is pretty expensive (even with the discount), so every time I go, he or his nurse empties out their "stash" of samples and give them to me. This means that I have free medicine about every third month. It does help a lot.
Best of luck!
P