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Medications and Drugs

Brand Names: Dibenzyline

Generic Name: phenoxybenzamine (Pronunciation: fen OX ee BENZ a meen)

What is phenoxybenzamine (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.

Dibenzyline 10 mg

red, capsule, imprinted with SKF E33

What are the possible side effects of phenoxybenzamine (Dibenzyline)?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Stop using phenoxybenzamine and call your doctor at once if you severe dizziness or if you feel like you might pass out.

Less serious side effects may include:

  • stuffy nose;
  • mild dizziness or drowsiness;
  • blurred vision;
  • trouble having an orgasm;
  • upset stomach; or
  • tired feeling.

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.

What is the most important information I should know about phenoxybenzamine (Dibenzyline)?

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.

Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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