A 19-year-old female asked:

I took bactrim (sulfamethoxazole and trimethoprim) to treat uti for three days. i am worse. now have vomiting, nausea, cramps, burning urination, fever, and low temps of 96.4. what could this be? could it be a kidney infection?

2 doctor answers • 3 doctors weighed in

Dr. Margaret Gourlayanswered

Family Medicine 25 years experience

Worsening UTI: Yes, these could be signs of a kidney infection, or a bladder infection that is not sensitive to Bactrim (sulfamethoxazole and trimethoprim). The prescribing doctor needs to hear about this immediately, because someone who is vomiting cannot keep down further meds. They will probably arrange a late add-in clinic appointment or ER visit.

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3.8k viewsReviewed >2 years ago

Dr. Michael Michaels

Dr. Michael Michaels agrees1 doctor agrees

Dr. Ashu Syalanswered

Pediatrics - Nephrology & Dialysis 32 years experience

Yes: Sounds like pyelonephritis or kidney imfection. See a MD ASAP as urine bacteria seems to be resistant to Bactrim (sulfamethoxazole and trimethoprim) and prolonging kidney infect can cause permanent renal damage

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3.8k viewsAnswered >2 years ago

Related questions

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My kidneyhad been hurting, and had a culture and put on bactrim, (sulfamethoxazole and trimethoprim) no good then on Macrobid stillhave pain.No fever, is it a kidney inf and not uti?Both?

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I feel I have a UTI (burning when I urinate, tired) I have an old Bactrim (sulfamethoxazole and trimethoprim) DS prescription dated 7/3/12. Is it safe to take?

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Had an HSG done 2 weeks ago on pyridium & bactrim (sulfamethoxazole and trimethoprim) still having pain/burning when urinating no infection. Whats happening do I need 2 see an urologist?

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Last updated Jun 16, 2019

Found in:

Infection›Fever›Urinary tract infections

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