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Generic Name: sulfamethoxazole and trimethoprim (oral) (SUL fa meth OX a zole and trye METH oh prim)
Brand Names:Septra, Septra DS
Medically reviewed by Kaci Durbin, MD Last updated on Mar 12, 2019.
What is Septra?
Septra contains a combination of sulfamethoxazole and trimethoprim. Sulfamethoxazole and trimethoprim are are both antibiotics that treat different types of infection caused by bacteria.
Septra is used to treat ear infections, urinary tract infections, bronchitis, traveler’s diarrhea, shigellosis, and Pneumocystis jiroveci pneumonia.
Important Information
You should not use Septra if you have severe liver disease, kidney disease that is not being monitored, anemia caused by folic acid deficiency, if you take dofetilide, or if you have had low platelets caused by using trimethoprim or a sulfa drug.
You should not take Septra if you are pregnant or breastfeeding.
Before taking this medicine
You should not use Septra if you are allergic to sulfamethoxazole or trimethoprim, or if you have:
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severe liver disease;
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kidney disease that is not being treated or monitored;
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anemia (low red blood cells) caused by folic acid deficiency;
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a history of low blood platelets after taking trimethoprim or any sulfa drug; or
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if you take dofetilide (Tikosyn).
Do not use if you are pregnant. Use effective birth control, and tell your doctor if you become pregnant.
Do not breastfeed while using this medicine.
This medicine should not be given to a child younger than 2 months old.
To make sure Septra is safe for you, tell your doctor if you have:
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kidney or liver disease;
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a folate (folic acid) deficiency;
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asthma or severe allergies;
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a thyroid disorder;
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HIV or AIDS;
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malnourishment;
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alcoholism;
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high levels of potassium in your blood;
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porphyria, or glucose-6-phosphate dehydrogenase (G6PD) deficiency; or
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if you use a blood thinner (such as warfarin) and you have routine “INR” or prothrombin time tests.
How should I use Septra DS?
Take Septra DS exactly as prescribed by your doctor. Follow all directions on your prescription label and read all medication guides or instruction sheets.
Drink plenty of fluids to prevent kidney stones while you are using this medicine.
Septra doses are based on weight in children. Use only the recommended dose when giving this medicine to a child.
Use this medicine for the full prescribed length of time, even if your symptoms quickly improve. Skipping doses can increase your risk of infection that is resistant to medication. This medicine will not treat a viral infection such as the flu or a common cold.
You may need frequent medical tests.
This medicine can affect the results of certain medical tests. Tell any doctor who treats you that you are using Septra.
Store at room temperature away from moisture, heat, and light.
What happens if I miss a dose?
Use the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not use two doses at one time.
What happens if I overdose?
Seek emergency medical attention or call 115.
Overdose symptoms may include loss of appetite, vomiting, fever, blood in your urine, yellowing of your skin or eyes, confusion, or loss of consciousness.
What should I avoid while using Septra?
Antibiotic medicines can cause diarrhea, which may be a sign of a new infection. If you have diarrhea that is watery or bloody, call your doctor before using anti-diarrhea medicine.
Sulfamethoxazole and trimethoprim could make you sunburn more easily. Avoid sunlight or tanning beds. Wear protective clothing and use sunscreen (SPF 30 or higher) when you are outdoors.
Septra side effects
Get emergency medical help if you have signs of an allergic reaction to Septra (hives, cough, shortness of breath, swelling in your face or throat) or a severe skin reaction (fever, sore throat, burning eyes, skin pain, red or purple skin rash with blistering and peeling).
Call your doctor at once if you have:
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severe stomach pain, diarrhea that is watery or bloody (even if it occurs months after your last dose);
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a skin rash, no matter how mild;
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yellowing of your skin or eyes;
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a seizure;
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new or unusual joint pain;
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increased or decreased urination;
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swelling, bruising, or irritation around the IV needle;
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increased thirst, dry mouth, fruity breath odor;
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an electrolyte imbalance – headache, confusion, weakness, slurred speech, tingly feeling, chest pain, irregular heartbeats, loss of coordination or movement, feeling unsteady; or
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low blood cell counts – fever, chills, mouth sores, skin sores, easy bruising, unusual bleeding, pale skin, cold hands and feet, feeling light-headed or short of breath.
Common Septra side effects may include:
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nausea, vomiting, loss of appetite; or
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mild itching or rash.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
What other drugs will affect Septra?
You may need more frequent check- ups or medical tests if you also use medicine to treat depression, diabetes, seizures, or HIV.
Many drugs can interact, and some drugs should not be used together. Tell your doctor about all your current medicines, especially:
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amantadine, cyclosporine, indomethacin, leucovorin, methotrexate, pyrimethamine;
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an “ACE inhibitor” heart or blood presure medication (benazepril, enalapril, lisinopril, quinapril, ramipril, and others); or
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a diuretic or “water pill” (chlorthalidone, hydrochlorothiazide, and others).
This list is not complete and many other drugs may affect sulfamethoxazole and trimethoprim. This includes prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.
Further information
Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use Septra only for the indication prescribed.
Copyright 1996-2020 Cerner Multum, Inc. Version: 9.01.
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Medical Disclaimer
The content of Holevn is solely for the purpose of providing information about Thuốc Septra and is not intended to be a substitute for professional medical advice, diagnosis or treatment. Please contact your nearest doctor or clinic, hospital for advice. We do not accept liability if the patient arbitrarily uses the drug without following a doctor’s prescription.
Reference from: https://www.drugs.com/septra.html
