Nitrofurantoin
urinary tract infection
"I have had this medication 3 times now and on taking the very first tablet after about 5 hours it felt like I had been hit by a truck. Really fast heart, aching all over, couldn't even walk to the loo had to crawl on all fours, terrible headache, really bad flu symptoms. It lasted 24 hour for the heart rate to go down but 3 days for the larthagicness to go. Will definately not be taking these again, never felt so ill"