Nitrofurantoin
"Started four days ago with a UTI. Started taking Nitrofurantoin Mono/Mac 100 mg twice daily. Ive been taking it 9:00 am and 9:00 pm for two days. Today I woke up feeling absolutely horrible! Burning clammy skin, chills (without fever) bad pain in left side of lower back. Pretty much can't get out of bed! I've had UTI's before and can still function. These meds are risky. Went to Doc this morning, and he confirmed that it's most likely this med. Just wanted to put my review out here to help if someome might feel the same."