TheraRadar
Data updated: May 26, 2026

TRIMETHOPRIM

Cytochrome P450 2C9 Inhibitors
Infectious Disease Approved 1982-07-30

TRIMETHOPRIM is indicated for the treatment of Urinary Tract Infection; Acute Otitis Media.

Source: FDA Label • NOVEL LABS INC
7
Indications
--
Phase 3 Trials
43
Years on Market

Details

Status
Prescription
First Approved
1982-07-30
Routes
ORAL
Dosage Forms
TABLET

TRIMETHOPRIM Approval History

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Original
New Indication
New Form
Label Update
86 FDA actions from 1982 to 2025
Mar 2025 SUPPL
Label · Labeling
Oct 2022 ORIGINAL
Update
Aug 2016 SUPPL
Mfg · Manufacturing (CMC)

What TRIMETHOPRIM Treats

2 indications

TRIMETHOPRIM is approved for 2 conditions since its original approval in 1982. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Urinary Tract Infection
  • Acute Otitis Media
Source: FDA Label

TRIMETHOPRIM Competitive Set

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Filters applied: drops same-active-ingredient (505(b)(2) reformulations), route-mismatch (topical vs systemic), and cross-therapeutic-area matches in same-indication rings.

Drugs Similar to TRIMETHOPRIM

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Clinical Trial Registry

4 trials
Trial Sponsor ID Phase Status Title
NCT06709196 REINFORCE 2024-514312-27-00 2024-514312-27-00 Ph 4 recruiting Clinical Trial Testing Whether Targeted Antibiotic Prophylaxis Can Reduce Infections After Cystectomy Compared to Empiric Prophylaxis
NCT03746106 results posted 13060 5R01DK108722-02 Ph 4 completed The Effect of SLC19A3 Inhibition on the Pharmacokinetics of Thiamine
NCT03077711 results posted EH16-216 Ph 4 completed Methenamine Hippurate Versus Trimethoprim in the Prevention of Recurrent UTIs
NCT02188472 PENTRIOX PEN1011 Ph 1 completed Pentriox - Induction of Oxidative Stress
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Active Pipeline

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Key Completed Trials

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Trial Timeline

Full development history with FDA approval milestones

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Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

TRIMETHOPRIM FDA Label Details

Indications & Usage

FDA Label (PDF)

TRIMETHOPRIM is indicated for the treatment of Urinary Tract Infection; Acute Otitis Media.

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Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.