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ilosone sulfa

Ilosone Sulfa is a combination medicine containing Erythromycin Estolate and Sulfisoxazole Acetyl.

Erythromycin Estolate and Sulfisoxazole Acetyl · by Lilly

Not yet rated· sourced from the FDA label
Rated against independent regulatory sources·Last updated June 7, 2026·How we rate
Verified againstopenFDANIH DailyMedRxClass

Key facts

Active ingredient
Erythromycin Estolate and Sulfisoxazole Acetyl
Form
Suspension
Strength
Erythromycin Estolate EQ 125MG BASE/5ML; Sulfisoxazole Acetyl EQ 600MG BASE/5ML
Type
Prescription (Rx)
Brand or generic
Brand-name
Manufacturer
Lilly
FDA application
NDA050599
Availability
Discontinued (per FDA)

Dosage forms

Suspension

The forms currently marketed in the U.S., per the FDA National Drug Code Directory.

Ways to save

Ask for the generic

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Request a 90-day supply

Bulk fills usually lower the per-dose price vs monthly refills.

Use copay cards

Manufacturer copay cards & patient-assistance programs — especially for brand drugs.

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Frequently asked questions

Is there a coupon or discount for Ilosone Sulfa?
pharmaranks is an independent ratings site, not a pharmacy — we don't issue coupons or sell Ilosone Sulfa. To pay less, ask your prescriber or pharmacist whether a generic equivalent exists, check the manufacturer's copay/savings card and patient-assistance program, and compare a pharmacy discount card against your insurance copay. Prices vary by pharmacy, insurance, and location, so always confirm at the counter. This is general reference, not medical or financial advice.
Who makes Ilosone Sulfa?
Ilosone Sulfa is marketed by Lilly. You can see Lilly's full profile, rating, and other products on pharmaranks.
Is Ilosone Sulfa a brand-name or generic drug?
Ilosone Sulfa is a brand-name product with the active ingredient Erythromycin Estolate and Sulfisoxazole Acetyl.
Is Ilosone Sulfa available over the counter?
No. Ilosone Sulfa is a prescription (Rx) medication in the US — you need a prescription from a licensed clinician (in person or via telehealth); it isn't sold over the counter. For some conditions there are OTC alternatives — ask your pharmacist.
What forms does Ilosone Sulfa come in?
Ilosone Sulfa is currently marketed as suspension, per the FDA's National Drug Code Directory.
Is Ilosone Sulfa FDA-registered?
Ilosone Sulfa is on record with the U.S. FDA under application number NDA050599. You can verify this on its official FDA label.

Information is sourced from public FDA regulatory data. Provided for general reference only — not medical advice. Always consult a licensed professional and the current prescribing information.

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