About quinagolide
Dopamine D2 receptor agonist
Used for
- Treatment of high prolactin levels, including prolactin-producing pituitary tumors
Usual adult dose
Start 25 micrograms once daily for 3 days, then 50 micrograms once daily for 3 days; increase gradually. Usual maintenance: 75–150 micrograms daily.
Common side effects
- Nausea or vomiting
- Headache or dizziness
- Fatigue
- Low blood pressure, especially when standing
Important warnings
- May cause sleepiness or sudden sleep; avoid driving if affected.
- Can cause fainting, particularly when starting or increasing the dose.
- Use caution with heart, liver, or kidney disease.
- Do not stop or change treatment without medical guidance.
Pregnancy
Use during pregnancy only when clinically necessary; treatment is usually reassessed if pregnancy occurs.
Breastfeeding
Quinagolide suppresses prolactin and may reduce or prevent milk production; generally unsuitable when breastfeeding is desired.
Interactions
- Dopamine-blocking medicines, such as some antipsychotics, may reduce its effect.
- Other medicines that lower blood pressure may increase dizziness or fainting.
- Alcohol and sedatives may worsen sleepiness or dizziness.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.