Phenoxybenzamine: uses, dosing, side effects & brands
Phenoxybenzamine is a medicine sold in the U.S. under one brand. Below: what the FDA label says, every product that contains it, what the pills look like, and its recall record.
Key facts
- Available as
- Capsule
- Sold as
- Dibenzyline
- Prescription?
- Prescription only
- Generic available?
- Not in our catalog
Every phenoxybenzamine product we track (1)
Same active ingredient — different manufacturer, form, price and FDA recall record. That last one is what our independent score measures.
Only one: Dibenzyline.
What phenoxybenzamine pills look like
Imprint codes, colour and shape from the FDA’s labelling data. Match the imprint on your pill — or search any imprint.
| Imprint | Strength | Colour | Shape | Maker |
|---|---|---|---|---|
| PHEH;10 | 10 mg | white | capsule | — |
| PHEH;10 | 10 mg | white | capsule | — |
| PHEH;10 | 10 mg | white | capsule | — |
| Amneal;1502 | 10 mg | red | capsule | — |
| 365;novitium10mg | 10 mg | red | capsule | — |
Phenoxybenzamine recalls
From the FDA Enforcement database. A recall covers specific lots — not the drug as a whole.
How long phenoxybenzamine keeps
No phenoxybenzamine 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.
Does phenoxybenzamine expire? The in-use limits and storage rules from its labelsWhat people report to the FDA about phenoxybenzamine
The FDA Adverse Event Reporting System (FAERS) collects reports from patients and clinicians. It holds 27 reports naming phenoxybenzamine, and the FDA flagged 74% 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:
- urinary tract infection6 reports
- covid-194 reports
- diarrhoea4 reports
- blood pressure decreased3 reports
- dizziness3 reports
- headache3 reports
- influenza3 reports
- catastrophic reaction2 reports
Read these as a signal, not a rate. A report does not mean phenoxybenzamine 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 section above.
Source: openFDA drug/event (FAERS), retrieved July 25, 2026.
Related calculators
Frequently asked questions
Can you take phenoxybenzamine 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 phenoxybenzamine against whatever else you take — and remember that a label not naming a drug is not the same as that combination being safe.
What forms does phenoxybenzamine come in?
Across the brands we track, phenoxybenzamine is currently marketed as capsule, 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 phenoxybenzamine?
We do not currently list a generic-labelled phenoxybenzamine product. That does not always mean none exists — it means none appears under a generic name in the FDA data we track. Ask your pharmacist.
Has phenoxybenzamine been recalled?
The FDA's Enforcement database lists 1 recall record whose product description mentions phenoxybenzamine. The most recent: Phenoxybenzamine Hydrochloride Capsules (Jan 15, 2024). A recall applies to specific lots, not to the drug as a whole — check the record for the affected lot numbers.
Cite this page
- APA
- pharmaranks. (2026, July 24). Phenoxybenzamine: uses, dosing, side effects & brands. https://pharmaranks.com/drugs/phenoxybenzamine
- MLA
- “Phenoxybenzamine: uses, dosing, side effects & brands.” pharmaranks, 24 July 2026, https://pharmaranks.com/drugs/phenoxybenzamine.
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 phenoxybenzamine on DailyMed (NIH) ↗.