Generic Name: phenoxybenzamine (fen OX ee BENZ a meen)Brand Names: Dibenzyline
Phenoxybenzamine lowers blood pressure.
Phenoxybenzamine is used control blood pressure and reduce sweating in people with pheochromocytoma.
Phenoxybenzamine may also be used for other purposes not listed in this medication guide.What is the most important information I should know about Dibenzyline (phenoxybenzamine)?You should not use this medication if you are allergic to phenoxybenzamine.
Before taking phenoxybenzamine, tell your doctor if you have coronary artery disease, a lung infection, or kidney disease.
Avoid getting up too fast from a sitting or lying position, or you may feel dizzy. Get up slowly and steady yourself to prevent a fall.Avoid drinking alcohol. It can increase drowsiness caused by phenoxybenzamine. This medication can cause side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be awake and alert.What should I discuss with my healthcare provider before taking Dibenzyline (phenoxybenzamine)?You should not use this medication if you are allergic to phenoxybenzamine.
If you have any of these other conditions, you may need a dose adjustment or special tests to safely use this medication:
coronary artery disease (hardened arteries);
a lung infection; or
Take this medication exactly as prescribed by your doctor. Do not take it in larger amounts or for longer than recommended. Follow the directions on your prescription label.
Your doctor may occasionally change your dose to make sure you get the best results from this medication.Take this medicine with a full glass of water. Store phenoxybenzamine at room temperature away from moisture and heat.
See also: Dibenzyline dosage in more detail
Take the missed dose as soon as you remember. If it is almost time for your next dose, wait until then to take the medicine and skip the missed dose. Do not take extra medicine to make up the missed dose.
Overdose symptoms may include fast heart rate, vomiting, dizziness, or fainting.
Avoid getting up too fast from a sitting or lying position, or you may feel dizzy. Get up slowly and steady yourself to prevent a fall.Avoid drinking alcohol. It can increase drowsiness caused by phenoxybenzamine.
Less serious side effects may include:
mild dizziness or drowsiness;
trouble having an orgasm;
upset stomach; or
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
Tell your doctor about all other medications you use, especially:
epinephrine (Epi-Pen), norepinephrine; or
blood pressure medications.
This list is not complete and there may be other drugs that can interact with phenoxybenzamine. Tell your doctor about all your prescription and over-the-counter medications, vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start a new medication without telling your doctor.