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Medications and Drugs

Brand Names: Levatol

Generic Name: penbutolol (Pronunciation: pen byoo TOH lol)

What is penbutolol (Levatol)?

Penbutolol is a beta-blocker. Beta-blockers affect the heart and circulation (blood flow through arteries and veins).

Penbutolol is used to treat hypertension (high blood pressure).

Penbutolol may also be used for purposes not listed in this medication guide.

What are the possible side effects of penbutolol (Levatol)?

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.

Call your doctor at once if you have a serious side effect such as:

  • slow or uneven heartbeats;
  • feeling short of breath, even with mild exertion;
  • swelling, rapid weight gain; or
  • feeling like you might pass out.

Less serious side effects may include:

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 penbutolol (Levatol)?

Do not stop taking penbutolol without first talking to your doctor. Stopping suddenly may make your condition worse.

If you need surgery, tell the surgeon ahead of time that you are using penbutolol. You may need to stop using the medicine for a short time.

This medication may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be alert.

Drinking alcohol can increase certain side effects of penbutolol.

Penbutolol is only part of a complete program of treatment for hypertension that may also include diet, exercise, and weight control. Follow your diet, medication, and exercise routines very closely if you are being treated for hypertension.

Keep using this medicine as directed, even if you feel well. High blood pressure often has no symptoms. You may need to use blood pressure medication for the rest of your life.



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.

Pill Identifier Tool

Need help identifying pills and medications?
Use the pill finder tool on RxList.



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