Phenoxybenzamine Hydrochloride

Where is Phenoxybenzamine Hydrochloride used?

Phenoxybenzamine Hydrochloride is a prescription medicine used for the treatment of pheochromocytoma. It is a tumor of the adrenal glands. This medicine is used to control episodes of high blood pressure and heavy sweating.

This medication may also be used to treat peripheral vasospastic conditions. It is a reversible localized or diffuse vasoconstriction of arteries or smaller blood vessels.

How does Phenoxybenzamine Hydrochloride work?

Phenoxybenzamine Hydrochloride produces therapeutic actions by blocking alpha receptors. It leads to muscle relaxation and a widening of the blood vessels so that blood can flow more easily. This widening of the blood vessels results in a lowering of blood pressure.

This medication has a long-duration action which is an alpha-adrenergic antagonist. It has been used to treat hypertension and as a peripheral vasodilator. The Peripheral vasodilator is a prescription to treat conditions that affect the blood vessels in the outer parts of the body.

How is Phenoxybenzamine Hydrochloride taken?

  • This medicine is usually taken 2 to 3 times a day.
  • Take this exactly as it is prescribed.
  • This medicine is to be taken by mouth with a full glass of water.
  • You may take each dose with or without food.
  • Take the medicine at the same time each day.

The dosage depends on your medical condition and response to the drug. You should not stop or change the dose without the prescription of your doctor. Your condition may become worse if you will suddenly stop the medication. Your doctor may direct you to slowly decrease your dosage. Let your doctor know if your condition worsens like your routine blood pressure increases.

What are the possible side effects of Phenoxybenzamine Hydrochloride?

  • Mild dizziness or drowsiness
  • Stuffy nose
  • Trouble having an orgasm
  • Blurred vision
  • Upset stomach
  • Tired feeling

Get medical help if there are symptoms of an allergic reaction:

  • Difficult breathing
  • Hives
  • Swelling of your lips, face, throat, or tongue

What are the precautions in taking Phenoxybenzamine Hydrochloride?

  • Before taking this drug, tell your doctor if you have any medical history especially of heart disease, blood vessel disease, or kidney disease. Tell also your doctor if you have any current medications such as vitamins or herbal supplements.
  • Avoid driving or using any machinery. It may need your full alertness. This drug may make you feel dizzy or drowsy.
  • This medication should only be used when needed during pregnancy. Call your doctor right away if you get pregnant while taking this medicine.
  • Remember that alcohol can add to the drowsiness caused by this drug. Avoid alcoholic beverages while taking this medicine.
  • If you are having surgery tell the doctor that you are taking this medicine.
  • Older adults may be more sensitive to the side effects of this medicine, especially dizziness. Dizziness could increase the risk of falling.
  • It is unknown if this medicine passes into breast milk. Consult your doctor before breastfeeding. This medicine should only be used when needed.
  • Keep this drug at room temperature away from moisture and heat as well as from the reach of children.