Although most people do not experience any problems while taking Bactrim® (sulfamethoxazole/trimethoprim), this medication is not free of potential side effects. Some of the most common problems include:
- Loss of appetite
- Allergic skin reactions (such as a rash or itching).
If any problems do occur, they tend to be minor. However, there are some potentially serious reactions with Bactrim that require immediate medical attention. Contact your healthcare provider if you experience serious problems such as watery or bloody diarrhea, hallucinations, or breathing problems.
Other warnings and precautions apply to women who are pregnant or breastfeeding, as well as people who have certain allergies. Also, you may not be able to take Bactrim if you have certain medical conditions, such as kidney disease, phenylketonuria, or HIV or AIDS.
(Click Bactrim Side Effects and Bactrim Warnings and Precautions for more information on possible problems that may occur while taking this drug, including potentially serious problems that may require immediate medical care.)