Hypertension Home > Penbutolol Side Effects

Although most people don't have any problems with penbutolol, side effects are possible. In clinical studies, the most common reactions that were reported with this medication included headache, fatigue, and dizziness. Side effects are generally mild, but you should seek medical attention right away if you experience lightheadedness or fainting, chest pain, or rapid weight gain.

An Introduction to Penbutolol Side Effects

As with any medicine, side effects are possible with penbutolol sulfate (Levatol®). However, not everyone who takes the medication will experience problems. In fact, most people tolerate it quite well. If side effects do occur, in most cases, they are minor and either require no treatment or can easily be treated by you or your healthcare provider.
(This article covers many, but not all, of the possible side effects with penbutolol. Your healthcare provider can discuss a more complete list of side effects with you.)

Side Effects With Penbutolol to Report

Some penbutolol side effects are potentially serious and should be reported to your healthcare provider. These include but are not limited to:
  • Lightheadedness or fainting, which can be a sign of dangerously low blood pressure (hypotension)
  • An irregular, fast, or slow heart rate
  • Chest pain
  • Worsening of asthma or other breathing problems
  • Depression
  • Signs of heart failure, such as:
    • Rapid weight gain
    • Swelling of the hands and feet
    • Shortness of breath
  • Signs of an allergic reaction, including:
    • Unexplained rash
    • Hives
    • Itching
    • Unexplained swelling
    • Wheezing
    • Difficulty breathing or swallowing.
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Last reviewed by: Kristi Monson, PharmD;
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