I just finished one and take the same drugs as you. I'm 72 and had colon cancer about 6 years ago so I get them pretty regular. My Dr let me continue to take my MG meds even the morning I went in. I had a long talk with all 3 drs to be sure they understood my problems. The worst part was drinking all that stuff. Here they let you split it in 1/2 drink 1/2 in evening and rest in the morning. I thought I was going to starve to death but after the procedure I wasn't hungry all in my head I guess. Oh I had 6 pre-cancerous polops and 2 normal. GO FOR IT!
Mike