Precautions and Warnings With Sulfamethoxazole/Trimethoprim

Who Should Not Take Sulfamethoxazole/Trimethoprim?

You should not take this medication if you:
  • Are allergic to sulfamethoxazole/trimethoprim, sulfamethoxazole, trimethoprim, or any of the inactive components used to make the medication. Your healthcare provider or pharmacist has a list of the inactive ingredients. You should not take this drug if you have had an allergic reaction to any other sulfonamide ("sulfa" drug).
  • Have ever had thrombocytopenia due to trimethoprim or sulfa drugs in the past.
  • Are an infant less than two months old.
  • Have significant liver disease.
  • Have severe kidney problems (unless your kidney function can be carefully monitored).

Final Thoughts

There are a number of situations in which sulfamethoxazole/trimethoprim should not be taken, along with several precautions and warnings people should be aware of before taking the medication. However, it is possible that not all of the warnings or precautions with sulfamethoxazole/trimethoprim were discussed in this article. Therefore, you should talk with your healthcare provider about the specific warnings that may apply to you.
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Sulfamethoxazole Trimethoprim Information

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