Get your Health question answered in 3 easy steps
A Doctor will be with you shortly
Ask a Doctor Now
124 Doctors are Online

Is fever caused due to bactrim?

Apr 2014
User rating for this question
Very Good
Answered by

Practicing since : 2004
Answered : 6300 Questions
I posted last night that I have been taking Bactrim for 8 days for a UTI. I had a 101° fever last night, was back to normal this morning, but broke out in bad hives. My nurse practitioner told me to stop the Bactrim & take a Benadryl. I did, the hives have gone down somewhat but I now have a 101° fever again. I've read all kinds of dire things about Bactrim side effects. When will I get better? Do I just wait it out? Why would Bactrim cause a fever?
Posted Thu, 20 Feb 2014 in Medicines and Side Effects
Answered by Dr. Indu Kumar 1 hour later
Brief Answer: Yes,Bactrim can cause fever. Detailed Answer: Hello XXXX Thanks for writing to us Your nurse has given you right suggestion to stop Bactrim.You are allergic to sulpha group of drugs.You are rightly taking Benadryl. Bactrim contains sulfamethoxazole and trimethoprim and allergy is due to sulfamethoxazole. Serious side effects of Bactrim are severe skin rashes,fever,bleeding,aplastic anemia,jaundice,mouth sores,joint aches,itching,sore throat etc. Fever may be due to both,UTI or side effects of Bactrim. After stopping Bactrim you should take another antibiotics like Cephalosporins for UTI.It is ideal to take after culture and sensitivity report. It can take 3-4 days for full recovery. For fever you can take tablet paracetamol 500 mg SOS if fever > 100 degree Fahrenheit.You can also do sponging. In future you should tell your doctor about sulpha drug allergy. Get well soon. Hope i have answered your query. Further queries are most welcome. Take Care Dr.Indu XXXXXXX
Above answer was peer-reviewed by
Share on Facebook
Share on Twitter
Share on Google+
Question is related to
Diseases and Conditions

The user accepted the expert's answer

Ask an Internal Med Specialist

© Ebix, Inc. All Rights Reserved.
All the information, content and live chat provided on the site is intended to be for informational purposes only, and not a substitute for professional or medical advice. You should always speak with your doctor before you follow anything that you read on this website. Any health question asked on this site will be visible to the people who browse this site. Hence, the user assumes the responsibility not to divulge any personally identifiable information in the question. Use of this site is subject to our Terms & Conditions
Already Rated.
Your rating:

Ask a Doctor