It is important that your family doctor check your progress at regular appointments if you will be taking this drug for a long time. This will allow your family doctor to check for any unwanted effects that may be causing by this drug.
If your symptoms do not improve within a few days, or if they become worse, check with your family doctor.
If this drug causes anemia, your family doctor may want you to take folic acid - a vitamin every day to help clear up the anemia. If so, it is important to take folic acid every day along with this drug; do not miss any doses.
Trimethoprim may cause blood problems. These problems may result in a greater risk of certain infections, slow healing and bleeding of the gums. Therefore, you must be careful when using regular toothbrushes, dental floss and toothpicks. Dental work must be delayed until your blood counts have returned to normal. Check with your family doctor or dentist if you have any questions about proper oral hygiene - mouth care during treat.
Some people who take trimethoprim may become more sensitive to sunlight than they are normally. Exposure to sunlight, even for brief periods of time, may cause severe sunburn or skin rash, redness, itching, or discoloration. When you begin taking this drug:
If you have a severe reaction from the sun, check with your family doctor .