Penbutolol

Why this is used

Penbutolol is used to treat high blood pressure. Penbutolol is in a class of medications called beta blockers. It works by relaxing blood vessels and slowing heart rate to improve blood flow and decrease blood pressure.

How to take it

Penbutolol comes as a tablet to take by mouth. It is usually taken once a day. Follow the directions on your prescription label carefully and ask your doctor or pharmacist to explain any part you do not understand. Take penbutolol exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor. Penbutolol helps control your condition but will not cure it. Continue to take penbutolol even if you feel well. Do not stop taking penbutolol without talking to your doctor.

Side effects

<p></p> <p></p> <p></p> <p>Penbutolol may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:

<ul>
<li>
upset stomach</li>
<li>
diarrhea</li>
<li>
cough</li>
<li>
dizziness or lightheadedness</li>
<li>
excessive tiredness</li>
<li>
headache</li>
<li>
difficulty sleeping</li>
<li>
sweating</li>
<li>
decreased sexual ability</li>
<li>
memory loss</li></ul></p> <p></p> <p>If you experience any of the following symptoms, call your doctor immediately:

<ul>
<li>
chest pain</li>
<li>
difficulty breathing or swallowing</li>
<li>
fainting</li>
<li>
slow or irregular heartbeat</li>
<li>
depression</li>
<li>
easy bruising or bleeding</li></ul>If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration's (FDA) MedWatch Adverse Event Reporting program online [at <a href='http://www.fda.gov/Safety/MedWatch'>http://www.fda.gov/Safety/MedWatch</a>] or by phone [1-800-332-1088].</p>

Precautions

Before taking penbutolol, tell your doctor and pharmacist if you are allergic to penbutolol or any other drugs. tell your doctor and pharmacist what prescription and nonprescription medications you are taking, especially medications for migraine headaches, asthma, allergies, colds, or pain; other medications for heart disease or high blood pressure; reserpine (Serpasil); and vitamins. tell your doctor if you have or have ever had asthma; diabetes; heart block; an overactive thyroid; or heart, lung, liver, or kidney disease. if you are having surgery, including dental surgery, tell your doctor or dentist that you take penbutolol.

Overdose

In case of overdose, call your local poison control center at 1-800-222-1222. If the victim has collapsed or is not breathing, call local emergency services at 911.
Educational reference only — talk to a pharmacist or prescriber about Penbutolol.