what is bactrim antibiotic used to treat

what is bactrim antibiotic used to treat

Generic title: sulfamethoxazole and trimethoprim (oral) (SUL fa meth OX a zole and trye METH oh prim) Model title: Bactrim, Bactrim DSDrug class: Sulfonamides

Medically reviewed by Philip Thornton, DipPharm. Final up to date on Mar 3, 2021.

You're reading: what is bactrim antibiotic used to treat

  • Makes use of
  • Warnings
  • Dosage
  • What to keep away from
  • Negative effects
  • Interactions
  • FAQ

What’s Bactrim?

Bactrim incorporates a mix of sulfamethoxazole and trimethoprim. Sulfamethoxazole and trimethoprim are are each antibiotics that deal with various kinds of an infection attributable to micro organism.

Bactrim is used to deal with ear infections, urinary tract infections, bronchitis, traveler’s diarrhea, shigellosis, and Pneumocystis jiroveci pneumonia.

Bactrim can also be used for functions not listed on this remedy information.


You shouldn’t use Bactrim if in case you have extreme liver illness, kidney illness that isn’t being monitored, anemia attributable to folic acid deficiency, if you happen to take dofetilide, or if in case you have had low platelets induced through the use of trimethoprim or a sulfa drug.

You shouldn’t take sulfamethoxazole and trimethoprim if you’re pregnant or breastfeeding.

Earlier than taking this medication

You shouldn’t use Bactrim if you’re allergic to sulfamethoxazole or trimethoprim, or if in case you have:

  • extreme liver illness;

  • kidney illness that isn’t being handled or monitored;

  • anemia (low pink blood cells) attributable to folic acid deficiency;

  • a historical past of low blood platelets after taking trimethoprim or any sulfa drug; or

  • if you happen to take dofetilide (Tikosyn).

Don’t use Bactrim if you’re pregnant. This medication might hurt the unborn child or trigger start defects. Use efficient contraception, and inform your physician if you’re pregnant or change into pregnant.

Don’t breastfeed whereas utilizing this medication.

This medication shouldn’t be given to a baby youthful than 2 months outdated.

To verify Bactrim is secure for you, inform your physician if in case you have:

  • kidney or liver illness;

  • a folate (folic acid) deficiency;

  • bronchial asthma or extreme allergy symptoms;

  • a thyroid dysfunction;

  • malnourishment;

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  • excessive ranges of potassium in your blood;

  • porphyria, or glucose-6-phosphate dehydrogenase (G6PD) deficiency; or

  • if you happen to use a blood thinner (corresponding to warfarin) and you’ve got routine “INR” or prothrombin time exams.

How ought to I take Bactrim?

Take Bactrim precisely as prescribed by your physician. Observe all instructions in your prescription label and browse all remedy guides or instruction sheets.

Drink loads of fluids to forestall kidney stones if you are utilizing this medication.

Sulfamethoxazole and trimethoprim doses are primarily based on weight in kids. Use solely the beneficial dose when giving this medication to a baby.

Use this medication for the total prescribed size of time, even when your signs shortly enhance. Skipping doses can enhance your danger of an infection that’s proof against remedy. This medication won’t deal with a viral an infection such because the flu or a typical chilly.

You might want frequent medical exams.

This medication can have an effect on the outcomes of sure medical exams. Inform any physician who treats you that you’re utilizing Bactrim.

Retailer at room temperature away from moisture, warmth, and lightweight.

What occurs if I miss a dose?

Use the drugs as quickly as you may, however skip the missed dose whether it is virtually time to your subsequent dose. Don’t use two doses at one time.

What occurs if I overdose?

Search emergency medical consideration or name the Poison Assist line at 1-800-222-1222.

Overdose signs could embody lack of urge for food, vomiting, fever, blood in your urine, yellowing of your pores and skin or eyes, confusion, or lack of consciousness.

What ought to I keep away from whereas utilizing Bactrim?

Antibiotic medicines may cause diarrhea, which can be an indication of a brand new an infection. In case you have diarrhea that’s watery or bloody, name your physician earlier than utilizing anti-diarrhea medication.

Bactrim might make you sunburn extra simply. Keep away from daylight or tanning beds. Put on protecting clothes and use sunscreen (SPF 30 or increased) when you’re outside.

Bactrim unintended effects

Get emergency medical assist if in case you have indicators of an allergic response to Bactrim (hives, cough, chest ache, shortness of breath, swelling in your face or throat) or a extreme pores and skin response (fever, sore throat, burning eyes, pores and skin ache, pink or purple pores and skin rash with blistering and peeling).

Search medical remedy if in case you have a critical drug response that may have an effect on many elements of your physique. Signs could embody: pores and skin rash, fever, swollen glands, joint ache, muscle aches, extreme weak point, pale pores and skin, uncommon bruising, or yellowing of your pores and skin or eyes.

Name your physician directly if in case you have:

  • extreme abdomen ache, diarrhea that’s watery or bloody (even when it happens months after your final dose);

  • a pores and skin rash, regardless of how gentle;

  • yellowing of your pores and skin or eyes;

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    a seizure;

  • new or uncommon joint ache;

  • elevated or decreased urination;

  • swelling, bruising, or irritation across the IV needle;

  • elevated thirst, dry mouth, fruity breath odor;

  • new or worsening cough, fever, bother respiratory;

  • excessive potassium stage – nausea, weak point, tingly feeling, chest ache, irregular heartbeats, lack of motion;

  • low sodium stage – headache, confusion, slurred speech, extreme weak point, vomiting, lack of coordination, feeling unsteady; or

  • low blood cell counts – fever, chills, mouth sores, pores and skin sores, simple bruising, uncommon bleeding, pale pores and skin, chilly fingers and ft, feeling light-headed or in need of breath.

Widespread Bactrim unintended effects could embody:

  • nausea, vomiting, lack of urge for food; or

  • pores and skin rash.

This isn’t an entire checklist of unintended effects and others could happen. Name your physician for medical recommendation about unintended effects. You might report unintended effects to FDA at 1-800-FDA-1088.

What different medication will have an effect on Bactrim?

You might want extra frequent check- ups or medical exams if you happen to additionally use medication to deal with melancholy, diabetes, seizures, or HIV.

Inform your physician about all of your present medicines. Many medication can have an effect on sulfamethoxazole and trimethoprim, particularly:

  • amantadine, digoxin, cyclosporine, indomethacin, leucovorin, methotrexate, procainamide, pyrimethamine;

  • an “ACE inhibitor” coronary heart or blood presure remedy (benazepril, enalapril, lisinopril, quinapril, ramipril, and others); or

  • a diuretic or “water capsule” (chlorthalidone, hydrochlorothiazide, and others).

This checklist is just not full and plenty of different medication could work together with sulfamethoxazole and trimethoprim. This contains prescription and over-the-counter medicines, nutritional vitamins, and natural merchandise. Not all doable drug interactions are listed right here.

Incessantly requested questions

  • Can you are taking Bactrim DS if you happen to’re allergic to penicillin?
  • How lengthy does it take for a boil to heal whereas taking Bactrim?
  • Can I drink alcohol whereas taking sulfamethoxazole / trimethoprim DS tablets?
  • What dose of co-trimoxazole is utilized in a affected person with a UTI?

Additional info

Keep in mind, maintain this and all different medicines out of the attain of youngsters, by no means share your medicines with others, and use Bactrim just for the indication prescribed.

All the time seek the advice of your healthcare supplier to make sure the data displayed on this web page applies to your private circumstances.

Medical Disclaimer

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