I am pretty sure I have a UTI since I had bad pain in my abdomen, side, and back. It hurts to urinate and even though I am drinking a lot of water I only urinate very small amount. Since its the weekend I went to the store and got over the counter medicine call AZO for pain relief just to wait it out until Monday comes and I can see my PCP. But before I did that I was in a lot of pain and my mom gave some of her macrobid. I was desperate so I took it. My question is will having taken it for two days cause a false negative when I go to the doctor and get tested for a UTI on monday?
It may. Macrobid is often the antibiotic of choice for treatment of urinary tract infections. The usual course is 5 days. It is possible that taking two days may make your UA negative, however, the doctor will probable have you complete and additional 3 days of antibiotics. J. Kyle Mathews, MD
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