Important Note

The following information is intended to supplement, not substitute for, the expertise and judgment of your physician, pharmacist or other healthcare professional. It should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. Consult your healthcare professional before using this drug.

PHENOXYBENZAMINE - ORAL

(fen-ox-ee-BEN-zuh-meen)

COMMON BRAND NAME(S): Dibenzyline

Uses

This medication is used to treat symptoms of pheochromocytoma such as high blood pressure and excess sweating. Phenoxybenzamine may also be used to treat urinary problems in men who have certain prostate conditions.

How To Use

Take this medication by mouth as directed. Your dose may be increased gradually every few days until the desired effect is obtained. Follow dosing instructions closely.

Side Effects

Stomach upset, nasal congestion, drowsiness, dizziness, weakness, constricted pupils, inhibition of ejaculation may occur. These effects should subside as your body adjusts to the medication. If they continue or become bothersome, inform your doctor. Notify your doctor if you develop: a rapid or pounding heartbeat, fainting, vomiting, unusual weakness. Males - though it is unlikely to occur, if you get a painful, prolonged erection, stop using this drug and seek immediate medical attention. This medication may cause dizziness or drowsiness. Use caution engaging in activities requiring alertness. Move from a lying to standing position slowly and be careful on stairs. If you notice other effects not listed above, contact your doctor or pharmacist.

Precautions

Tell your doctor if you have: other pre-existing illnesses, allergies. This medication should be used only if clearly needed during pregnancy. Discuss the risks and benefits with your doctor. Since small amounts of this medication are found in breast milk, consult your doctor before breast-feeding.

Drug Interactions

Tell your doctor of any over-the-counter or prescription medication you may take, especially of: high blood pressure drugs, drugs for coughs/colds/allergies. Avoid intake of alcohol or other sedating type medications to prevent excessive drowsiness and dizziness. Do not start or stop any medicine without doctor or pharmacist approval.

Overdose

If overdose is suspected, contact your local poison control center or emergency room immediately. Symptoms of overdose may include unusual dizziness or fainting, rapid pulse, and loss of consciousness.

Notes

During therapy with this medication, your blood pressure will be monitored closely and dosing adjustments may be made frequently.

Missed Dose

If you miss a dose, take it as soon as remembered; do not take it if it is near the time for the next dose, instead, skip the missed dose and resume your usual dosing schedule. Do not "double-up" the dose to catch up.

Storage

Store at room temperature between 59 and 86 degrees F (15 and 30 degrees C) away from heat and light. Do not store in the bathroom.

Medical Alert

Your condition can cause complications in a medical emergency. For enrollment information call MedicAlert at 1-800-854-1166 (USA), or 1-800-668-1507 (Canada).