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thiosulfil

Thiosulfil (Sulfamethizole) is a medication used to treat Urinary Tract Infections, Gram-Negative Bacterial Infections, Gram-Positive Bacterial Infections.

Sulfamethizole · by Wyeth Ayerst

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

Active ingredient
Sulfamethizole
Form
Tablet
Strength
Sulfamethizole 250MG · Sulfamethizole 500MG
Type
Prescription (Rx)
Brand or generic
Brand-name
Manufacturer
Wyeth Ayerst
FDA application
NDA008565
Availability
Discontinued (per FDA)

May treat (source: NIH RxClass)

Dosage forms

Tablet

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

What does Thiosulfil treat?
Thiosulfil (Sulfamethizole) may be used to treat urinary tract infections, gram-negative bacterial infections, gram-positive bacterial infections, based on NIH RxClass drug-classification data (conditions a drug may treat — not a verbatim copy of the FDA-approved label). This is general reference, not medical advice.
Is there a coupon or discount for Thiosulfil?
pharmaranks is an independent ratings site, not a pharmacy — we don't issue coupons or sell Thiosulfil. 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 Thiosulfil?
Thiosulfil is marketed by Wyeth Ayerst. You can see Wyeth Ayerst's full profile, rating, and other products on pharmaranks.
Is Thiosulfil a brand-name or generic drug?
Thiosulfil is a brand-name product with the active ingredient Sulfamethizole.
Is Thiosulfil available over the counter?
No. Thiosulfil 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 Thiosulfil come in?
Thiosulfil is currently marketed as tablet, per the FDA's National Drug Code Directory.
Is Thiosulfil FDA-registered?
Thiosulfil is on record with the U.S. FDA under application number NDA008565. 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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