25 Mar 2011
The Sulfa is in a different catagory of antibiotics. Many people who can not take Penicillin can take Sulfa. There are not cross allergies. As long as you have never had any allergies to Sulfa drugs you should be ok. That being said, many people are allergic to Sulfa's too. It is a possibility you could be allergic to both. If you have never taken Sulfa drugs, the only way to find out is to take it or be allergy tested for it. If you have a rash after starting the Sulfa stop taking it and notify you healthcare provider right away. If you have swelling in your face or tongue or have difficulty breathing call 911.These could indicate a severe, life threatening allergy.
- Trimethoprim Information for Consumers
- Trimethoprim Information for Healthcare Professionals (includes dosage details)
- Side Effects of Trimethoprim (detailed)
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i cut my hand and the hospital gave me a scrip of Cephalexin but i already have a scrip of sulfameth/trimethoprim .
1 answer • 4 May 2010
i am taking sulfameth/trimethoprim and phenazopyridine and want to go outside for workouts. Is this safe or should i just avoid being outside??
1 answer • 12 Apr 2011
I am allergic to Penecillin and anything in the Penecillin family, I recently was prescribed this and I now have a rash on my legs
1 answer • 23 Sep 2013
hi. I am on this sulfameth/trimethoprim 800/160 tabs. my first week ends today. I have gotten too any pimples over this one week. can anyone tell me ...
0 answers • 26 Mar 2014
1 answer • 29 Oct 2014