How it works
Common side effects
- Exercise caution during treatment with phenoxybenzamine in an elderly patient.
- Inform your doctor, if you have any heart complaints, brain arteries thickening, low blood pressure or kidney diseases.
- Do not drive or operate machinery as phenoxybenzamine may cause drowsiness or dizziness.
- Tell your doctor if you are pregnant or planning to become pregnant or are breastfeeding.
Frequently asked questions
Q. How long and quick does phenoxybenzamine take to work?
The effect of phenoxybenzamine starts in about 1 hour after an intravenous dose. Following oral administration, the action starts gradually over several hours and persists for 3-4 days following a single dose
Q. Is phenoxybenzamine an antibiotic?
No, phenoxybenzamine is not used as an antibiotic.