Drugs Home > Gablofen Side Effects

If you are receiving Gablofen, contact your healthcare provider immediately if you develop seizures, hallucinations, chest pain, or any other potentially serious problems. In most cases, however, reactions to this product tend to be minor and easy to treat. Some of the most commonly reported side effects of baclofen (the active ingredient in Gablofen) include low muscle tone, drowsiness, and headaches.

An Introduction to Side Effects of Gablofen

Just like any medicine, Gablofen® (baclofen) can cause side effects. However, not everyone who receives the medication will have problems. In fact, some people tolerate it quite well. If side effects do occur, in most cases, they are minor and either require no treatment or are treated easily by you or your healthcare provider.
(This article covers many, but not all, of the possible side effects of this drug. Your healthcare provider can discuss a more complete list with you.)

Serious Gablofen Side Effects

Some side effects of this medication are potentially serious and should be reported immediately to your healthcare provider. These include but are not limited to:
  • Signs of an allergic reaction to Gablofen, such as:
    • An unexplained rash
    • Hives
    • Itching
    • Unexplained swelling, especially of the mouth, lips, or throat
    • Wheezing or difficulty breathing
    • Difficulty swallowing
  • Seizures, especially in people with seizure disorders
  • Ovarian cysts
  • Depression, hallucinations, or worsening of other mental health problems
  • Heart palpitations or chest pain.
Serious problems can also occur if a person stops or reduces the dose of Gablofen too quickly (see Baclofen Withdrawal for more information).
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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