Bactrim DS Tablet (Sulfamethoxazole/Trimethoprim)

Price range: $88.94 through $190.46Required

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Pack SizePriceUnit PriceQuantity 
500 Tablet/s$88.94$0.18 / tablet
1000 Tablet/s$143.52$0.14 / tablet
1500 Tablet/s$190.46$0.13 / tablet
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Estimated delivery: September 14, 2026 – September 19, 2026
Written by Dr Ambrose Chan, MD, MD Medically reviewed by Dr. Sabrina Castillon, MD, MD
Last updated on August 13, 2026
Description

About Bactrim DS Tablet (Sulfamethoxazole/Trimethoprim)

Medicine information

Active ingredient
Sulfamethoxazole and trimethoprim
Delivery time
6 to 15 days
Indication
Treatment of susceptible bacterial infections when prescribed; use should be guided by local labeling, culture results and antimicrobial-stewardship principles.
Manufacturer
Refer to the supplied product pack
Packaging
500, 1000 or 1500 tablets
Strength
800/160 mg
Dosage form
Double-strength tablet
Route
Oral
Prescription status
Prescription only

Medicine overview

Bactrim DS is a prescription combination antibacterial tablet containing sulfamethoxazole 800 mg and trimethoprim 160 mg.

What it is used for

Used for specific susceptible bacterial infections and certain opportunistic infections. It does not treat viral infections.

How it works

The two medicines block sequential steps in bacterial folate synthesis, producing a combined antibacterial effect.

How it is taken

Take exactly as prescribed and complete the directed course unless a clinician tells you to stop. Maintain adequate fluid intake unless medically restricted.

Important warnings

Serious skin reactions, blood disorders, high potassium, kidney injury and severe allergy can occur. Avoid with known sulfonamide or trimethoprim allergy and review major interactions, including warfarin and some potassium-raising medicines.

Side effects and monitoring

Common effects include nausea, vomiting, loss of appetite and rash. Stop and seek urgent care for blistering rash, breathing difficulty, jaundice, unusual bleeding or severe diarrhea.

Pregnancy

Can harm the fetus and interfere with folate metabolism; use during pregnancy only when the prescriber determines it is necessary. Avoid near term unless specifically directed.

Breastfeeding

Passes into breast milk; specialist advice is required, particularly for premature, jaundiced, ill or G6PD-deficient infants.

Food, drink and interactions

Avoid or limit alcohol because it may worsen nausea, dizziness and dehydration.

Food and drink

May be taken with food if stomach upset occurs; drink adequate water unless restricted.

Storage

Store at controlled room temperature, protect from light and moisture, and keep tightly closed.

Frequently asked questions

Does Bactrim DS treat colds or flu?

No. It is an antibacterial medicine and does not treat viral infections.

Should the course be completed?

Take it for the full prescribed duration unless your clinician tells you to stop or a serious reaction occurs.

Sources

  1. dailymed.nlm.nih.gov

Medical information notice: This information does not replace advice from a qualified healthcare professional. Use prescription medicine only as directed by the prescriber and the approved product information.

Additional information
PackagingQty
strength$ 0.5 / 10 tablets
Delivery Time6 To 15 days
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