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Prescription medicine

Gentamicin Brand names: Gentak; first approved as Garamycin

Gentamicin (Garamycin) is a prescription medicine with an FDA approval on record since 1970. FDA's NDC Directory lists it from 24 generic labelers, and pharmacies paid $1.30 per mL (Gentamicin 80 mg/2 mL vial) in the October 7, 2026 NADAC survey.

  • Generic listed

Check it at the source: the gentamicin FDA label on DailyMed (effective July 22, 2024, Bausch & Lomb Incorporated); the NDA 50039 record on Drugs@FDA; every gentamicin label on DailyMed.

Highlights of the record

FDA label of July 22, 2024; NDC Directory, Drugs@FDA and Orange Book, October 8, 2026; NADAC October 7, 2026

Used for

From the label: indications and usage

Gentamicin sulfate ophthalmic solution is indicated in the topical treatment of ocular bacterial infections including conjunctivitis, keratitis, keratoconjunctivitis, corneal ulcers, blepharitis, blepharoconjunctivitis, acute meibomianitis, and dacryocystitis, caused by susceptible strains of the following microorganisms: Staphylococcus aureus, Staphylococcus epidermidis, Streptococcus pyogenes, Streptococcus pneumon

Forms and strengths

  • 1 mg/g
  • 3 mg/ml
  • 3 mg/g
  • 10 mg/ml
  • 40 mg/ml
  • 60 mg/50ml
  • 80 mg/50ml
  • 80 mg/100ml
  • 100 mg/50ml
  • 100 mg/100ml

Injection (solution); solution/ drops; ointment; solution; cream.

On the market

Earliest approval on file
June 19, 1970 Garamycin, Schering; Drugs@FDA’s file, where older or withdrawn approvals can be missing
Generic approvals
42 first March 15, 1966; 13 with a marketed status in Drugs@FDA
Labelers listed (NDC)
24 of which 24 under generic applications, 0 under brand applications, repackagers included

Supply and safety

Pharmacy cost (NADAC)
$1.30 per mL Gentamicin 80 mg/2 mL vial
Shortage (FDA)
No current entry
Recalls by its makers (FDA)
9 since 2012 0 Class I among all firms' recalls; latest May 29, 2025; 17 more by firms not listed as its makers
FAERS reports
15,709 through July 30, 2026

What is gentamicin used for?

From the label: indications and usage

Gentamicin sulfate ophthalmic solution is indicated in the topical treatment of ocular bacterial infections including conjunctivitis, keratitis, keratoconjunctivitis, corneal ulcers, blepharitis, blepharoconjunctivitis, acute meibomianitis, and dacryocystitis, caused by susceptible strains of the following microorganisms: Staphylococcus aureus, Staphylococcus epidermidis, Streptococcus pyogenes, Streptococcus pneumoniae, Enterobacter aerogenes, Escherichia coli, Haemophilus influenzae, Klebsiella pneumoniae, Neisseria gonorrhoeae, Pseudomonas aeruginosa, and Serratia marcescens.

Conditions named in the indications of gentamicin's FDA labels, with every medicine labeled for each:

From other gentamicin labels

Bacterial infections: INDICATIONS AND USAGE Gentamicin sulfate ophthalmic solution is indicated in the topical treatment of ocular bacterial infections including conjunctivitis, keratitis, keratoconjunctivitis, corneal ulcers, blepharitis …

FDA pharmacologic class: Aminoglycoside Antibacterial.

Source: FDA drug label (Gentamicin Sulfate), Bausch & Lomb Incorporated, effective July 22, 2024 (SPL set 41d01350-5c4b-42fc-be5f-986ceec02bd3), via openFDA; the full label on DailyMed

Is there a generic for gentamicin (Garamycin)?

The FDA approved the first generic gentamicin on March 15, 1966. 42 generic applications are approved; 13 of them carry a current (not discontinued) marketing status in Drugs@FDA; that status is not evidence that the generic is on sale.

FDA's NDC Directory lists gentamicin from 24 labelers under a generic (ANDA) application. A listing means the company has registered the product for sale; it does not show that every pharmacy stocks it.

  • 1970 earliest approval on file
  • 1966 first generic approved
  • red ticks recalls

Source: Drugs@FDA, FDA NDC Directory and the Orange Book (openFDA bulk files, October 8, 2026)

What do pharmacies pay for gentamicin (Garamycin)?

In CMS's NADAC survey of October 7, 2026, pharmacies paid $1.30 per mL (Gentamicin 80 mg/2 mL vial), down 21% from $1.66 on October 8, 2025. The chart's scale runs from the lowest to the highest price shown, not from zero. NADAC is what retail pharmacies paid their wholesalers, per unit, in CMS's monthly survey; what a patient pays depends on insurance and the pharmacy.

  • Gentamicin 80 mg/2 mL vial (generic)
$1.87
$1.30
April 2024October 2026
NADAC per unit, October 7, 2026
Strength and formBrand or genericPharmacy cost30 tablets, or one pen or vial12-month change
Gentamicin 0.1% creamGeneric$0.886 per gramn/a+3%
Gentamicin 0.1% ointmentGeneric$0.856 per gramn/a-3%
Gentamicin 0.3% eye dropGeneric$0.790 per mLn/a+12%
Gentamicin 80 mg/2 mL vialGeneric$1.30 per mL$2.61 per vial-21%

Source: CMS National Average Drug Acquisition Cost (NADAC) survey, October 7, 2026: what retail pharmacies paid per unit; not a counter price

Has gentamicin been recalled?

The FDA's Enforcement Report lists 26 recalls naming gentamicin since 2012: 0 Class I (the most serious), 26 Class II, 0 Class III; 4 still ongoing. 17 of them are by firms that FDA's NDC Directory does not list as a maker of gentamicin and that hold no application for it in Drugs@FDA, such as compounding pharmacies or bulk-ingredient suppliers; the recall notice names the product recalled. A recall names products and lots, not every product of the medicine.

StartedClassCompanyReason
May 29, 2025Class IIEugia US LLCFailed Stability Specifications: Out of specification results for the Color Absorbance test during 12 Month sample analysis.
March 15, 2022Class IITeligent Pharma, Inc.cGMP deviations: all products within expiry are being recalled because the firm is discontinuing its stability study program.
March 16, 2020Class IIThe Medicine Shoppe Pharmacy not a listed makerLack of Assurance of Sterility
July 22, 2019Class IIWise Pharmacy not a listed makerLack of Processing Controls
April 2, 2019Class IIAnderson Compounding Pharmacy, Inc. DBA Anderson … not a listed makerLack of sterility assurance.
February 22, 2019Class IIAkorn, Inc.Failed Impurities/Degradation Specifications: High Out-of-Specification (OOS) results for Individual and Total Impurities that have been identified at the 18 …
October 8, 2018Class IIAkorn, Inc.Presence of Particulate Matter: Crystalline particles were noticed at the 24 month clarity testing.
May 17, 2016Class IIWell Care Compounding Pharmacy not a listed makerLack of Assurance of Sterility: FDA inspection identified GMP violations potentially impacting product quality and sterility.

Source: FDA Enforcement Report (drug recalls) via openFDA, through October 8, 2026

What does the gentamicin label say about other medicines?

The gentamicin label names no other medicine on this site. The labels of 25 other medicines name gentamicin. The sentences are the labels' own; a label lists what its studies and reports found, not every interaction.

Other labels that name gentamicin

Check gentamicin against other medicines

Source: FDA drug label (Gentamicin Sulfate), Bausch & Lomb Incorporated, effective July 22, 2024 (SPL set 41d01350-5c4b-42fc-be5f-986ceec02bd3), via openFDA; the full label on DailyMed

What do FAERS reports show for gentamicin?

The FDA Adverse Event Reporting System holds 15,709 reports that list gentamicin among the medicines taken, through July 30, 2026, each a report of something that happened, not proof the medicine caused it; 2,829 are coded as a death and 7,428 as a hospital stay. Counts follow how widely a medicine is used and watched, and they are not a measure of how risky it is.

Reports received each year

The most reported reactions

  • Drug Ineffective (a use or a product term, not a reaction)1,248
  • Acute Kidney Injury1,204
  • Pyrexia898
  • Off Label Use (a use or a product term, not a reaction)870
  • Renal Failure707
  • Diarrhoea563
  • Sepsis507
  • Condition Aggravated (a use or a product term, not a reaction)504

Side effects: the label's list and every FAERS reaction

Source: FDA Adverse Event Reporting System (FAERS) via openFDA, reports through July 30, 2026

How does gentamicin compare with medicines for the same use?

9 side-by-side pages set gentamicin beside a medicine whose label shares a use: approvals, generics, pharmacy cost, warnings and supply.

What next?

Other aminoglycoside antibacterials
the pharmacologic class, with prices and generics
Gentamicin side effects
the label's list beside FAERS reports
Check an interaction
what two or more labels say about each other