If I am allergic to Penecillin, can I take sulfameth/trimethoprim?

Answers (1)

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.

Votes: +1

Further Information

Search for questions

Still looking for answers? Try searching for what you seek or ask your own question.

Similar questions

Instead of taking Cephalexin can I take sulfameth/trimethoprim instead?

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

Does and antibiotic effect the effectiveness of Mirena?

I had Mirena inplanted a few months ago and I was recently on an antibiotic called sulfameth/trimethoprim 800/160 and I was just wondering if it ...

1 answer 6 Aug 2010

Is Metronidazole or Sulfamethoxazole/TMP DS part of the Penecillin family?

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

How to treat allergic reaction to sulfameth/trimethoprim?

severe rash with blistering

1 answer 4 May 2014

Sulfamethoxazole/Trimethoprim - when should this clear my acne?

its been a couple months of taking the sulfameth/trimethoprim and my acne has cleared more than before but many people talk as if its clearing there ...

0 answers 15 days ago