Im taking penicillin, but in a pain in the butt, i have to wake up at 2am to take the 4th pill for the day. i have some amoxicillin, which was for the same thing i have now. and its only 3 times a day. i really want to swap do u thing its okay too and i saw amoxicillin is a better antibiotic.Is it okay to change antibiotic?