Flumazenil: uses, dosing, side effects & brands
Flumazenil is a medicine sold in the U.S. under 2 brand and generic names. Below: what the FDA label says, every product that contains it, what the pills look like, and its recall record.
Key facts
- Available as
- Injectable
- Sold as
- 2 products — Flumazenil and Romazicon
- Prescription?
- Prescription only
- Generic available?
- Yes
- What the pharmacy pays
- about $1 per ml — not your price
Every flumazenil product we track (2)
Same active ingredient — different manufacturer, form, price and FDA recall record. That last one is what our independent score measures.
| # | Drug | Rating | Type | Form | Generic? | Pharmacy pays | |
|---|---|---|---|---|---|---|---|
| 1 | 72/100 | Prescription | Injectable | Generic | $1 | View → | |
| 2 | Not yet rated | Prescription | Injectable | Generic | $1 | View → |
How long flumazenil keeps
No flumazenil label we read sets a separate limit for after opening, but they do specify how it must be stored — and the stability behind any date assumes those conditions.
What people report to the FDA about flumazenil
The FDA Adverse Event Reporting System (FAERS) collects reports from patients and clinicians. It holds 893 reports naming flumazenil, and the FDA flagged 93% 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:
- coma72 reports
- depressed level of consciousness68 reports
- hypotension59 reports
- seizure54 reports
- drug withdrawal convulsions44 reports
- somnolence44 reports
- pyrexia34 reports
- unresponsive to stimuli34 reports
Read these as a signal, not a rate. A report does not mean flumazenil 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.
Related calculators
Frequently asked questions
Can you take flumazenil with other medicines?
It depends on the medicine. We check it against the FDA labels rather than guessing: our interaction checker searches each drug's own label for the other and quotes what it says, naming the section it came from. Run flumazenil against whatever else you take — and remember that a label not naming a drug is not the same as that combination being safe.
What brand names is flumazenil sold under?
We track 2 flumazenil-containing products in the U.S.: Flumazenil and Romazicon. They are the same active ingredient; they differ in form, manufacturer, price and FDA recall record.
What forms does flumazenil come in?
Across the brands we track, flumazenil is currently marketed as injectable, per the FDA's National Drug Code Directory. Each form is dosed differently — follow the label for the exact product you were prescribed.
Is there a generic flumazenil?
Yes. Our catalog lists 1 generic flumazenil product alongside the brand versions. A generic has the same active ingredient and must meet the FDA's bioequivalence standard; it usually costs less. Ask your pharmacist which one your plan covers.
Cite this page
- APA
- pharmaranks. (2026, July 24). Flumazenil: uses, dosing, side effects & brands. https://pharmaranks.com/drugs/flumazenil
- MLA
- “Flumazenil: uses, dosing, side effects & brands.” pharmaranks, 24 July 2026, https://pharmaranks.com/drugs/flumazenil.
We summarise public FDA and NIH sources — for a clinical claim, cite the primary source we link to as well.
Sources: FDA openFDA drug label, National Drug Code Directory, and Enforcement (recall) database. This page reproduces public FDA data and is not medical advice. Dosing is set by your prescriber.
Read the full FDA label for flumazenil on DailyMed (NIH) ↗.