urinary tract infection
"I never had an allergic reaction until I took this medication, now I learned the hard way I'm allergic to sulfa drugs. After one dose I had a lot the serious side effects: high fever, intense stomach pain, insomnia, hallucinations, anxiety, non-stop chills/shaking, vomiting, rash. Needless to say I ended up in the hospital for 3 days. I think my that you need to be careful when taking the drug and be aware of all the serious side effects."