Parkinsons Disease Home > Side Effects of Bromocriptine

Constipation, dizziness, and nausea are some of the most commonly reported bromocriptine side effects. Although most reactions to the medication are minor, some are potentially serious and should be reported to a healthcare provider right away. Some of these rare but serious problems include high or low blood pressure, difficulty breathing, and vision changes.

An Introduction to Bromocriptine Side Effects

Just like any medicine, bromocriptine mesylate (Cycloset, Parlodel®) may cause side effects. However, not everyone who takes the medication will have problems. In fact, most people tolerate it well. If side effects do occur, they are often 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 with bromocriptine. Your healthcare provider can discuss a more complete list with you.)

Serious Side Effects With Bromocriptine

Some side effects with bromocriptine are potentially serious and should be reported immediately to your healthcare provider. Although most of these serious side effects are rare, a few may be common. These serious reactions include but are not limited to:
  • High blood pressure (hypertension) or low blood pressure (hypotension)
  • Hallucinations or worsening of psychotic disorders
  • Seizures
  • Strokes
  • A constant headache or vision changes (which may be the first indication of a stroke or other problems)
  • Heart attacks
  • Intense, unusual urges, such as urges to gamble or engage in risky sexual activity 
  • Difficulty breathing
  • Depression
  • Stomach ulcers or bleeding in the digestive tract
  • Low blood sugar (hypoglycemia) 
  • Signs of an allergic reaction, such as:
    • An unexplained rash
    • Hives
    • Itching
    • Swelling of the mouth or throat
    • Wheezing
    • Difficulty breathing.
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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