Trimethoprim (By Mouth)
Treats urinary tract infections.Belongs to a group of drugs called antibacterials.
There may be other brand names for this medicine.
When This Medicine Should Not Be Used:
You should not use this medicine if you have had an allergic reaction to trimethoprim. Trimethoprim should not be taken by patients have anemia.
How to Use This Medicine:
- Your doctor will tell you how much to take and how often.
- You may take your medicine with food or milk to avoid stomach upset.
- Keep taking this medicine for as long as your doctor has ordered, even if you feel better. If you stop taking the medicine too soon, your infection may return.
If a dose is missed:
- Take the missed dose as soon as possible.
- If it is almost time for your next regular dose, wait until then to take the medicine and skip the missed dose.
- You should not use two doses at the same time.
How to Store and Dispose of This Medicine:
- Store at room temperature away from heat, moisture, and direct light.
- Keep all medicine out of the reach of children.
Drugs and Foods to Avoid:
Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.
- Make sure your doctor knows if you are taking phenytoin (Dilantinreg;).
Warnings While Using This Medicine:
- Check with your doctor before taking this medicine if you have liver or kidney problems.
- If you are pregnant or breastfeeding, talk to your doctor before taking this medicine.
Possible Side Effects While Using This Medicine:
Call your doctor right away if you notice any of these side effects:
- Severe rash, hives, or itching
- Unexplained fever or sore throat
- Wheezing or trouble breathing
- Unusual weakness or tiredness
If you notice these less serious side effects, talk with your doctor:
- Upset stomach, nausea
- Loss of appetite
Revision date: July 6, 2011
Last revised: by Jorge P. Ribeiro, MD
Drugs & Medications
CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.
The drug reference included in this section is provided by Cerner Multum, Inc., of Denver, Colorado. Armenian Medical Network receives monthly updates from Multum.