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Data updated: May 26, 2026

PROBALAN (probenecid)

Infectious Disease Approved 1976-07-29

PROBALAN is indicated for the treatment of Uncomplicated Urinary Tract Infection.

Source: FDA Label • LANNETT

How PROBALAN Works

ORLYNVAH consists of sulopenem etzadroxil (a penem antibacterial) and probenecid. Probenecid acts as a renal tubular transport inhibitor that blocks the OAT3-mediated renal clearance of sulopenem. By inhibiting this excretion pathway, probenecid increases the plasma concentrations and extends the half-life of sulopenem, thereby enhancing its therapeutic efficacy against target pathogens.

Source: FDA Label
1
Indication
--
Phase 3 Trials
49
Years on Market

Details

Status
Prescription
First Approved
1976-07-29
Routes
ORAL
Dosage Forms
TABLET

Companies

Active Ingredient: PROBENECID

PROBALAN Approval History

1977
1978
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1983
1984
1985
1986
1987
1988
1989
1990
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Original
New Indication
New Form
Label Update
4 FDA actions from 1976 to 2006
May 2006 SUPPL
Label · Labeling
Aug 1989 SUPPL
Label · Labeling
Mar 1988 SUPPL
Mfg · Manufacturing (CMC)

What PROBALAN Treats

1 indications

PROBALAN is approved for 1 conditions since its original approval in 1976. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Uncomplicated Urinary Tract Infection
Source: FDA Label

PROBALAN Competitive Set

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Drugs Similar to PROBALAN

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ORLYNVAH
PROBENECID
1 shared
ITERUM THERAP
Shared indications:
Uncomplicated Urinary Tract Infection
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Clinical Trial Registry

22 trials
Trial Sponsor ID Phase Status Title
NCT04939623 Probenacid 1.0 Ph 2 recruiting Novel Use of Probenecid to Alleviate Symptoms of Opioid Withdrawal
NCT07160738 C4391011 Ph 1 completed A Study to Learn About How the Study Medicines Called Itraconazole and Probenecid Change How the Body Processes PF-07220060
NCT04551222 Re-Prosper HF CARA-006-19F I01CX001968 Ph 2, Ph 3 completed The Re-Prosper HF Study
NCT07318870 PROBCLUSTER GHD_2024_12 Ph 2 not yet recruiting Efficacy of Probenecid on Cluster Seizures During Anti Seizure Medication Withdrawal in Presurgical Focal Epilepsy Video-EEG Monitoring
NCT06416800 INCB54707-110 Ph 1 completed A Study to Assess the Effect of Povorcitinib on Digoxin, Rosuvastatin, and Metformin Pharmacokinetics and the Effect of Probenecid on Povorcitinib Pharmacokinetics When Administered Orally to Healthy Adult Participants
NCT05082909 ADDPROPEN results posted 21HH6936 Ph 1, Ph 2 completed Addition of Probenecid to Penicillin-V Therapy
NCT06647810 1378-0025 2024-513590-45-00, U1111-1307-2145 Ph 1 completed A Study in Healthy People to Test How 2 Different Formulations of BI 690517 Are Taken up in the Body and How Probenecid Influences the Amount of BI 690517 in the Blood
NCT05954624 ZSP1273-23-13 Ph 1 completed Drug-durg Interaction of ZSP1273 With Digoxin, Rosuvastatin,Itraconazole and Probenecid
NCT03307252 results posted 0352-2100 2017-001549-29 Ph 1 completed This Study Tests the Effect of Certain Medicines on the Transport of Other Medicines in the Body of Healthy Men
NCT05497674 DJT1116PG-DM-108 Ph 1 completed Effects of Rifampicin and Probenecid On The Pharmacokinetic Profile Of Rongliflozin In Healthy Subjects
NCT03965351 results posted 2017-0541 Ph 4 completed TRPV2 Agonists in the Fontan Circulation
NCT03296800 results posted THR-1442-C-454 Ph 1 completed Study to Evaluate Effects of Probenecid, Rifampin and Verapamil on Bexagliflozin in Healthy Subjects
NCT03937258 B7451043 Ph 1 completed A Study to Assess Pharmacokinetics of PF-04965842 and Its Metabolites and Effect of Probenecid in Healthy Participants
NCT03466567 NN9924-4394 U1111-1197-9088, 2017-002498-21 Ph 1 completed A Trial Investigating the Effect of Probenecid and Ciclosporin on the Concentrations of SNAC in Healthy Subjects
NCT03801746 AKB-6548-CI-0029 Ph 1 completed Drug-Drug Interaction Study of Vadadustat With Cyclosporine, Probenecid and Rifampin
NCT03105986 CR108300 64041575RSV1002, 2016-003923-49 Ph 1 completed A Phase 1 Study to Evaluate the Effect of the Organic Anion Transporter Inhibitor Probenecid on the Pharmacokinetics of JNJ-64041575 in Healthy Adults
NCT00288158 DK71223 (completed) R21DK071223 Ph 2 completed Primary Prevention of Hypertension in Obese Adolescents
NCT01320722 MODERATE results posted 2010-P-002049 1R01HL105440 Ph 3 completed Study of Vitamin D and Uric Acid Lowering on Kidney and Blood Vessel Function
NCT01937026 results posted 14604 I4V-MC-JAGG Ph 1 completed A Study of Baricitinib and Probenecid in Healthy Participants
NCT03138759 PL3397-A-U122 Ph 1 completed Effect of Probenecid on Pexidartinib Pharmacokinetics
NCT01816646 2012-0903 NCI-2013-02184 Ph 1 completed Intravesical Cidofovir for Hemorrhagic Cystitis
NCT01634100 results posted 1245.83 2012-000971-17 Ph 1 completed Drug-interaction Trial in Healthy Subjects With Oral Administration of Empagliflozin (BI 10773), Rifampicin and Probenecid
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Active Pipeline

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Key Completed Trials

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Completed studies with published results, ranked by significance

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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.

PROBALAN FDA Label Details

Indications & Usage

PROBALAN is indicated for the treatment of Uncomplicated Urinary Tract Infection.

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Data Sources

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