Brand name: Bactrim --- BACTRIM (Co-trimoxazole, Septra, Cotrim)
Pronounced: BAC-trim
Generic ingredients: Trimethoprim, Sulfamethoxazole
Other brand names: Cotrim, Septra
Why is Bactrim prescribed?

Bactrim, an antibacterial combination drug, is prescribed for the treatment of certain urinary tract infections, severe middle ear infections in children, long-lasting or frequently recurring bronchitis in adults that has increased in seriousness, inflammation of the intestine due to a severe bacterial infection, and travelers' diarrhea in adults. Bactrim is also prescribed for the treatment of Pneumocystis carinii pneumonia, and for prevention of this type of pneumonia in people with weakened immune systems.
Most important fact about Bactrim

Sulfamethoxazole, an ingredient in Bactrim, is one of a group of drugs called sulfonamides, which prevent the growth of bacteria in the body. Rare but sometimes fatal reactions have occurred with use of sulfonamides. These reactions include Stevens-Johnson syndrome (severe eruptions around the mouth, anus, or eyes), progressive disintegration of the outer layer of the skin, sudden and severe liver damage, a severe blood disorder (agranulocytosis), and a lack of red and white blood cells because of a bone marrow disorder.

Notify your doctor at the first sign of an adverse reaction such as skin rash, sore throat, fever, joint pain, cough, shortness of breath, abnormal skin paleness, reddish or purplish skin spots, or yellowing of the skin or whites of the eyes.

Frequent blood counts by a doctor are recommended for patients taking sulfonamide drugs.
How should you take Bactrim?

It is important that you drink plenty of fluids while taking this medication in order to prevent sediment in the urine and the formation of stones.

Bactrim works best when there is a constant amount in the blood. Take Bactrim exactly as prescribed; try not to miss any doses. It is best to take doses at evenly spaced times day and night.

If you are taking Bactrim suspension, ask your pharmacist for a specially marked measuring spoon that delivers accurate doses.

If you miss a dose...

Take the forgotten dose as soon as you remember. If it is almost time for your next dose, skip the one you missed and go back to your regular schedule. Do not take 2 doses at once.

Storage instructions...

Store tablets and suspension at room temperature and protect from light. Keep tablets in a dry place. Protect the suspension from freezing.
Bactrim side effects

Side effects cannot be anticipated. If any develop or change in intensity, inform your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking Bactrim.

* Side effects may include:
Hives, lack or loss of appetite, nausea, skin rash, vomiting

Why should Bactrim not be prescribed?

If you are sensitive to or have ever had an allergic reaction to trimethoprim, sulfamethoxazole, or other sulfa drugs, you should not take Bactrim. Make sure that your doctor is aware of any drug reactions that you have experienced.

Unless you are directed to do so by your doctor, do not take this medication if you have been diagnosed as having megaloblastic anemia, which is a blood disorder due to a deficiency of folic acid.

This drug should not be given to infants less than 2 months of age.

Bactrim is not recommended for preventative or prolonged use in middle ear infections and should not be used in the treatment of streptococcal pharyngitis (strep throat) or certain other strep infections.

You should not take Bactrim if you are pregnant or nursing a baby.
Special warnings about Bactrim

Make sure your doctor knows if you have impaired kidney or liver function, have a folic acid deficiency, are a chronic alcoholic, are taking anticonvulsants, have been diagnosed as having malabsorption syndrome (abnormal intestinal absorption), are in a state of poor nutrition, or have severe allergies or bronchial asthma. Bactrim should be used cautiously under these conditions.

If you develop severe diarrhea, call your doctor. This drug can cause a serious intestinal inflammation.

If you have AIDS (acquired immunodeficiency syndrome) and are taking Bactrim to treat or prevent Pneumocystis carinii pneumonia, you will experience more side effects than will someone without AIDS.
Possible food and drug interactions when taking Bactrim

If Bactrim is taken with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important to check with your doctor before combining Bactrim with the following:

Amantadine (Symmetrel)
Blood thinners such as Coumadin
Cyclosporine (Neoral, Sandimmune)
Digoxin (Lanoxin)
Indomethacin (Indocin)
Methotrexate (Rheumatrex)
Oral diabetes medications such as Micronase and Glucotrol
Pyrimethamine (Daraprim)
Seizure medications such as Dilantin
Tricyclic antidepressants such as Elavil, Norpramin, Sinequan, and Tofranil
Water pills (diuretics) such as HydroDIURIL
Special information if you are pregnant or breastfeeding

Bactrim should not be taken during pregnancy. If you are pregnant or plan to become pregnant, notify your doctor immediately. Bactrim does appear in breast milk and could affect a nursing infant. It should not be taken while breastfeeding.
Recommended dosage for Bactrim

ADULTS
Overdosage

If you suspect an overdose of Bactrim, seek emergency medical attention immediately.

* Symptoms of an overdose of Bactrim include:
Blood or sediment in the urine, colic, confusion, dizziness, drowsiness, fever, headache, lack or loss of appetite, mental depression, nausea, unconsciousness, vomiting, yellowed eyes and skin