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Bactrim

Bactrim

Sulfamethoxazole · Trimethoprim

A sulfamethoxazole and trimethoprim combination for urinary tract infections and pneumocystis pneumonia. Each ingredient blocks a different step in the same pathway.

Category
Antibiotics
Active ingredients
Sulfamethoxazole · Trimethoprim
Route
Oral use
Form
Tablet
Strengths
400mg + 80mg · 800mg + 160mg

Bactrim is the reference name. You receive a generic with the same active ingredient and strength.

Supply requirements for Bactrim depend on the medicine and destination. The fulfilment partner must confirm them before accepting an order.

Bactrim details

Alternative names
sulfamethoxazole, trimethoprim
Therapeutic class
Folate Synthesis Inhibitor Combination
Pharmacological class
Sulfonamide Antibacterial
Known off-label uses
toxoplasmosis
Minor side effects
nausea; vomiting; decreased appetite
Moderate side effects
mild rash; pruritus; headache
Dosage forms
Tablet
Administration route
Oral use
Supply category
Prescription-only medicine (POM)
Originator
Roche
Onset Time
1–2 hours
Duration
12 hours
Storage instructions
Store below 25°C.
Drug interactions
Warfarin; Methotrexate; Phenytoin
Age restrictions
Approved for infants over two months of age, children, and adults.
Contraindications

megaloblastic anaemia due to folate deficiency; severe renal impairment; infants under two months

Serious side effects

agranulocytosis, requires immediate medical attention; Stevens-Johnson syndrome, requires immediate medical attention

Patient summary

A sulfamethoxazole and trimethoprim combination for urinary tract infections and pneumocystis pneumonia. Each ingredient blocks a different step in the same pathway.

Mechanism of action

Cooperatively blocks sequential steps of bacterial tetrahydrofolic acid synthesis, preventing cellular reproduction.

Pregnancy and breastfeeding

Pregnancy: Interferes with folate metabolism. High risk. Avoid during pregnancy. Breastfeeding: Not recommended.

What you will receive

Bactrim names the medicine you are looking for. What ships is a generic version of it.

  • A generic containing Sulfamethoxazole / Trimethoprim at the strength you pick.
  • Which generic brand and maker ships depends on stock and destination.
  • Check the active ingredient, strength, form, pack, seal, batch and expiry when it arrives.

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