tenathan
Tenathan (Bethanidine Sulfate) is a medication supplied as a tablet.
Bethanidine Sulfate · by Robins Ah
Key facts
- Active ingredient
- Bethanidine Sulfate
- Form
- Tablet
- Strength
- Bethanidine Sulfate 10MG · Bethanidine Sulfate 25MG
- Type
- Prescription (Rx)
- Brand or generic
- Brand-name
- Manufacturer
- Robins Ah
- FDA application
- NDA017675
- Availability
- Discontinued (per FDA)
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
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 Tenathan?
- pharmaranks is an independent ratings site, not a pharmacy — we don't issue coupons or sell Tenathan. 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 Tenathan?
- Tenathan is marketed by Robins Ah. You can see Robins Ah's full profile, rating, and other products on pharmaranks.
- Is Tenathan a brand-name or generic drug?
- Tenathan is a brand-name product with the active ingredient Bethanidine Sulfate.
- Is Tenathan available over the counter?
- No. Tenathan 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 Tenathan come in?
- Tenathan is currently marketed as tablet, per the FDA's National Drug Code Directory.
- Is Tenathan FDA-registered?
- Tenathan is on record with the U.S. FDA under application number NDA017675. 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 BETHANIDINE SULFATE
The FDA Adverse Event Reporting System (FAERS) collects reports from patients and clinicians. It holds 2 reports naming BETHANIDINE SULFATE — the active ingredient in Tenathan, 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 nephritis2 reports
- chronic kidney disease1 reports
Read these as a signal, not a rate. A report does not mean BETHANIDINE SULFATE 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 25, 2026.
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