About your treatment  

Your doctor has ordered sulfamethoxazole and trimethoprim, an antibiotic, to help treat your infection. It will be added to an intravenous fluid that will drip through a needle or catheter placed in your vein for 60-90 or more minutes, two to four times a day.

The combination of sulfamethoxazole and trimethoprim eliminates bacteria that cause many kinds of infections, including pneumonia and urinary tract and intestinal infections. This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.

Your health care provider (doctor, nurse, or pharmacist) may measure the effectiveness and side effects of your treatment using laboratory tests and physical examinations. It is important to keep all appointments with your doctor and the laboratory. The length of treatment depends on how your infection and symptoms respond to the medication.

Storing your medication  

• Your health care provider will probably teach you how to prepare each dose of sulfamethoxazole and trimethoprim. Since the medication is stable for only a short time after preparation, prepare your daily doses as directed by your health care provider.

Store your medication only as directed. Make sure you understand what you need to store your medication properly.

Keep your supplies in a clean, dry place when you are not using them, and keep all medications and supplies out of reach of children. Your health care provider will tell you how to throw away used needles, syringes, tubing, and containers to avoid accidental injury.

In case of emergency/overdose  

In case of overdose, call your local poison control center at 1-800-222-1222. If the victim has collapsed or is not breathing, call local emergency services at 911.

Signs of infection  

If you are receiving sulfamethoxazole and trimethoprim in your vein or under your skin, you need to know the symptoms of a catheter-related infection (an infection where the needle enters your vein or skin). If you experience any of these effects near your intravenous catheter, tell your health care provider as soon as possible:

• tenderness
• warmth
• irritation
• drainage
• redness
• swelling
• pain

Brand names  

Other names