How to Save Money on Gentamicin in 2026: Coupons, Discounts, and Patient Assistance

Gentamicin is one of the more affordable prescription medications available — it is an older generic antibiotic with multiple manufacturers. But even affordable drugs can have moments where the out-of-pocket cost is higher than expected, especially if you are uninsured or your insurance does not cover it as well as you thought. This guide covers the current prices for all gentamicin formulations and the best ways to reduce your cost in 2026.

What Does Gentamicin Cost Without Insurance?

Here are the typical retail prices for different gentamicin formulations before discounts:

Gentamicin ophthalmic solution 0.3% (5 mL, Gentak): Retail price approximately $38–$44. With GoodRx coupon: as low as $14–$18.

Gentamicin ophthalmic ointment 0.3% (3.5g, Gentak): Retail price approximately $38. With GoodRx coupon: as low as $14.

Gentamicin topical cream or ointment 0.1% (2 x 15g tubes): Retail price approximately $100. With GoodRx coupon: approximately $31.

Gentamicin injectable (most common version): Retail price approximately $44–$87. With GoodRx: as low as $18–$26. SingleCare coupons bring some formulations as low as $10.

Best Coupons and Discount Programs for Gentamicin

There is no manufacturer savings program for generic gentamicin, but third-party discount programs deliver significant savings:

GoodRx: The most widely used drug discount platform. Free to use. GoodRx coupons for gentamicin eye drops (Gentak) bring the price to as low as $14 — a 64% discount off the $38 retail price. Visit goodrx.com or download the GoodRx app to find the lowest price near you.

SingleCare: SingleCare coupons can bring gentamicin ophthalmic solution as low as $9.51 per 5 mL — the lowest available price from major discount platforms. Visit singlecare.com to get a free coupon.

RxSaver and Blink Health: Additional platforms worth comparing. Prices vary by pharmacy and zip code, so checking multiple discount programs ensures you find the best price in your area.

Kroger Rx Savings Club: Kroger Pharmacy members can get gentamicin ophthalmic for as low as $6 through their pharmacy savings club.

Does Insurance Cover Gentamicin?

Yes, gentamicin is generally well-covered by insurance plans:

Commercial insurance: Most commercial plans cover generic gentamicin at Tier 1 or Tier 2, meaning a $0–$20 copay in most cases.

Medicare Part D: Ophthalmic and topical gentamicin is covered under most Part D plans at Tier 1. For outpatient prescriptions, the copay is typically $0–$10. Injectable gentamicin given in a hospital is covered under Medicare Part A (hospital) or Part B (outpatient infusion).

Medicaid: Gentamicin is on most state Medicaid formularies as a preferred generic. Copays, if any, are minimal (typically $1–$3 per prescription).

Is There a Patient Assistance Program for Gentamicin?

Because gentamicin is a generic drug with no active brand manufacturer in the US market, there is no dedicated manufacturer patient assistance program (PAP). However, several resources can help patients with limited income:

NeedyMeds.org: Lists assistance programs for generic drugs, state pharmaceutical assistance programs (SPAPs), and co-pay assistance available by condition and state.

RxAssist.org: Searchable database of assistance programs for uninsured and underinsured patients.

Community health centers: Federally Qualified Health Centers (FQHCs) provide medications at significantly reduced cost through the 340B drug pricing program. If you are uninsured, an FQHC near you may be able to fill your gentamicin prescription at very low cost.

Practical Tips to Pay the Least Possible

Always compare GoodRx, SingleCare, and RxSaver before paying. Prices can differ by $10–$20 between platforms at the same pharmacy.

Ask your pharmacist if using a coupon is cheaper than your insurance copay. For low-cost generics like gentamicin, cash-pay prices with coupons are often lower than your insurance copay.

Use a warehouse club pharmacy (Costco, Sam's Club) if you have access. These pharmacies frequently have the lowest gentamicin prices of any retail channel.

Once you find the best price, you need to find a pharmacy that actually has gentamicin in stock. See our guide on

how to find Gentamicin in stock near you for step-by-step tips.