exna
Exna (Benzthiazide) is a medication used to treat Edema, Heart Failure, Hypertension, Nephrotic Syndrome.
Benzthiazide · by Ah Robins Inc
Key facts
- Active ingredient
- Benzthiazide
- Form
- Tablet
- Strength
- Benzthiazide 50MG
- Type
- Prescription (Rx)
- Brand or generic
- Brand-name
- May treat
- edema, heart failure, hypertension
- Manufacturer
- Ah Robins Inc
- FDA application
- NDA012489
- 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
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
- What does Exna treat?
- Exna (Benzthiazide) may be used to treat edema, heart failure, hypertension, nephrotic syndrome, 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 Exna?
- pharmaranks is an independent ratings site, not a pharmacy — we don't issue coupons or sell Exna. 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 Exna?
- Exna is marketed by Ah Robins Inc. You can see Ah Robins Inc's full profile, rating, and other products on pharmaranks.
- Is Exna a brand-name or generic drug?
- Exna is a brand-name product with the active ingredient Benzthiazide.
- Is Exna available over the counter?
- No. Exna 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 Exna come in?
- Exna is currently marketed as tablet, per the FDA's National Drug Code Directory.
- Is Exna FDA-registered?
- Exna is on record with the U.S. FDA under application number NDA012489. 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 BENZTHIAZIDE
The FDA Adverse Event Reporting System (FAERS) collects reports from patients and clinicians. It holds 54 reports naming BENZTHIAZIDE — the active ingredient in Exna, and the FDA flagged 94% 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:
- eczema14 reports
- impetigo14 reports
- pruritus14 reports
- seborrhoeic dermatitis12 reports
- pain of skin9 reports
- diarrhoea6 reports
- general physical health deterioration6 reports
- pulmonary oedema5 reports
Read these as a signal, not a rate. A report does not mean BENZTHIAZIDE 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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