sulfabid
Sulfabid (Sulfaphenazole) is a medication supplied as a tablet and suspension.
Sulfaphenazole · by Purdue Frederick
Key facts
- Active ingredient
- Sulfaphenazole
- Form
- Tablet, Suspension
- Strength
- Sulfaphenazole 500MG
- Type
- Prescription (Rx)
- Brand or generic
- Brand-name
- Manufacturer
- Purdue Frederick
- FDA application
- NDA013092
- Availability
- Discontinued (per FDA)
Dosage forms
Tablet and Suspension
The forms currently marketed in the U.S., per the FDA National Drug Code Directory.
Ways to save
Ask for the generic
Same active ingredient, far cheaper. Is there a generic? →
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.
Compare alternatives
A same-class option may cost less. See alternatives →
Frequently asked questions
- Is there a coupon or discount for Sulfabid?
- pharmaranks is an independent ratings site, not a pharmacy — we don't issue coupons or sell Sulfabid. 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 Sulfabid?
- Sulfabid is marketed by Purdue Frederick. You can see Purdue Frederick's full profile, rating, and other products on pharmaranks.
- Is Sulfabid a brand-name or generic drug?
- Sulfabid is a brand-name product with the active ingredient Sulfaphenazole.
- Is Sulfabid available over the counter?
- No. Sulfabid 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 Sulfabid come in?
- Sulfabid is currently marketed as tablet and suspension, per the FDA's National Drug Code Directory.
- Is Sulfabid FDA-registered?
- Sulfabid is on record with the U.S. FDA under application number NDA013092. 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.
What people report to the FDA about SULFAPHENAZOLE
The FDA Adverse Event Reporting System (FAERS) collects reports from patients and clinicians. It holds 1 reports naming SULFAPHENAZOLE — the active ingredient in Sulfabid, and the FDA flagged 100% of those reports as serious. The effects reported most often — leaving out reports about overdose, misuse or the condition being treated, which dominate the raw list for common medicines:
- tubulointerstitial nephritis1 reports
Read these as a signal, not a rate. A report does not mean SULFAPHENAZOLE caused the effect — anyone can file one, and many describe people taking several medicines for several conditions. Crucially there is no denominator: FAERS does not record how many people took the drug, so these counts cannot be turned into “X% of patients” — a bigger number often just means a more widely used or more talked-about drug. Duplicates exist, and publicity drives reporting. For what is actually established, read the FDA label.
Source: openFDA drug/event (FAERS), retrieved September 26, 2026.
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