bioprim 400mg/80mg tablet - Sulfamethoxazole (400mg) + Trimethoprim (80mg) medicine

Bioprim 400mg/80mg Tablet - Uses, Price, Side Effects

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๐Ÿญ BIO Ethicals Pharma Limited ๐Ÿ“ฆ Varies by brand ๐Ÿ’Š Allopathy ๐Ÿ“… Updated: Jun 23, 2026
๐Ÿ“‹ Prescription Required ๐Ÿ’Š Generic Available
Medically Reviewed
Dr. SaathiMed Expert Panel | Jun 23, 2026

What is bioprim 400mg/80mg tablet used for?

Bioprim 400mg/80mg Tablet is a combination antibiotic containing Sulfamethoxazole and Trimethoprim. It works by inhibiting bacterial folic acid synthesis, effectively treating infections like urinary tract infections, bronchitis, and traveler's diarrhea. It is typically taken twice daily with a full glass of water.

  • Generic Name: Sulfamethoxazole + Trimethoprim
  • Manufacturer: BIO Ethicals Pharma Limited
  • Form: Allopathy
  • Pregnancy Category: D
  • Prescription Required: Yes
๐Ÿ’ก Did You Know? The first generic medicine was introduced in India in 1970 after the Patents Act was amended.

๐Ÿ’Š bioprim 400mg/80mg tablet Uses & Benefits

Urinary tract infections, Acute otitis media, Pneumocystis jirovecii pneumonia, Traveler's diarrhea, Shigellosis, Bronchitis

Off-label uses: Toxoplasmosis, Nocardiosis, Whipple's disease

๐Ÿ“‹ Drug Information

Generic Name(s)Sulfamethoxazole + Trimethoprim
Brand NameAntrima DS
ManufacturerBIO Ethicals Pharma Limited
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassANTI INFECTIVES
Action ClassSulfonamide + Folate antagonist
Route of AdministrationOral
StorageStore at 20-25ยฐC (68-77ยฐF); protect from light and moisture
Shelf LifeAs per manufacturer

๐Ÿ”ฌ Pharmacology (PK/PD)

Pharmacokinetics

AbsorptionWell absorbed from GI tract
DistributionWidely distributed; crosses placenta and enters breast milk
Protein BindingSulfamethoxazole: ~70%; Trimethoprim: ~44%
MetabolismSulfamethoxazole: hepatic acetylation and glucuronidation; Trimethoprim: hepatic oxidation
Half-LifeSulfamethoxazole: 9-11 h; Trimethoprim: 8-11 h
ExcretionRenal (both)
Bioavailability~90-100% oral
Onset of Action1-2 hours
Peak Plasma Time1-4 hours
Duration of Action12 hours

How It Works

Sequential inhibition of folate synthesis: Sulfamethoxazole inhibits dihydropteroate synthase; Trimethoprim inhibits dihydrofolate reductase

Mechanism Steps

1Sulfamethoxazole inhibits dihydropteroate synthase, blocking PABA incorporation into dihydrofolic acid
2Trimethoprim inhibits dihydrofolate reductase, preventing reduction of dihydrofolic acid to tetrahydrofolic acid
3Sequential blockade depletes tetrahydrofolate, essential for thymidine and purine synthesis

๐Ÿ’ก How to Take bioprim 400mg/80mg tablet

Follow your doctor's prescription exactly.

Dosage Timeline

๐ŸŒ… Morning โœ… โ˜€๏ธ Afternoon โŒ ๐ŸŒ† Evening โœ… ๐ŸŒ™ Night โŒ

โš ๏ธ Side Effects of bioprim 400mg/80mg tablet

โœ… Common Side Effects

  • Nausea
  • Vomiting
  • Diarrhea
  • Rash
  • Photosensitivity

๐Ÿšจ Serious Side Effects

  • Stevens-Johnson syndrome
  • Toxic epidermal necrolysis
  • Aplastic anemia
  • Agranulocytosis
  • Hepatitis
  • Interstitial nephritis

โš ๏ธ Rare Side Effects

  • Pseudomembranous colitis
  • Pancreatitis
  • Serum sickness
  • Lupus-like syndrome

Consult your doctor if you experience any unusual symptoms.

๐Ÿ”ฌ Drug Interactions

โš ๏ธ DrugSeverityEffect
Warfarin Major Increased bleeding risk
Methotrexate Major Increased methotrexate toxicity
Phenytoin Moderate Increased phenytoin levels

๐Ÿšจ Major Interactions

  • Warfarin
  • Methotrexate
  • Phenytoin
  • Sulfonylureas
  • Cyclosporine

โšก Moderate Interactions

  • ACE inhibitors
  • Diuretics
  • Procainamide
  • Amantadine

โ„น๏ธ Minor Interactions

  • Oral contraceptives
  • Rifampin

๐Ÿฝ๏ธ Food Interactions

Folate-rich foods may reduce efficacy

๐Ÿท Alcohol Interaction

Avoid alcohol; may cause disulfiram-like reaction

๐Ÿ›ก๏ธ Safety & Warnings

Liver
Moderate
Kidney
Moderate
Heart
Low
Pregnancy
Category D

๐Ÿšซ Contraindications

Hypersensitivity to sulfonamides or trimethoprim, Severe hepatic or renal impairment, Megaloblastic anemia due to folate deficiency, Pregnancy (especially 1st and 3rd trimester), Infants <2 months

๐Ÿ“Š Monitoring Parameters

Renal function, Hepatic function, CBC with differential, Serum potassium, Signs of hypersensitivity

๐Ÿคฑ Lactation Safety

Caution; excreted in breast milk; avoid in nursing infants <2 months

๐Ÿ’Š Overdose Management

Gastric lavage, activated charcoal, supportive care; folate supplementation for trimethoprim toxicity

โฐ Missed Dose

Take as soon as remembered; if near next dose, skip missed dose; do not double dose

๐Ÿ‘จโ€โš•๏ธ Reviewed by Expert

Dr. SaathiMed Expert Panel

MD, PhD - Pharmacology

Reviewed: Jun 23, 2026

๐Ÿ”— View Profile

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