Question About Medical Services

Wow, I feel silly for not doing my research earlier, that’s concerning. How about meds? It seems the supermarket sells Diltiazem. Could I get it without a prescription? Or is there someone I could go to who could write me one? I’ve had Diltiazem in the hospital before and it converted me, with no noticeable side effects. Not sure if it’s safe to take outside of a hospital setting though.