Verzenio Side Effects
Common and serious side effects of Verzenio (abemaciclib), what to watch for, and when to call your doctor.
Common side effects
This is not a complete list. Always consult a doctor or pharmacist.
- Diarrhea
- Low blood counts
- Fatigue
- Blood clots
- Lung inflammation
- Liver problems
Serious warnings
Verzenio has notable warnings and precautions. Tell your doctor about your medical history and any other medicines or supplements you take before starting Verzenio.
When to call a doctor
As a general rule with any prescription medicine, contact your doctor about any side effect that is severe, persistent, or worries you. General guidance is to seek emergency care for signs of a serious allergic reaction to any medicine — such as trouble breathing or swelling of the face, lips, tongue, or throat.
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Frequently asked questions
What are the most common side effects of Verzenio?
Commonly reported side effects of Verzenio (abemaciclib) include Diarrhea, Low blood counts, Fatigue, Blood clots, Lung inflammation, and Liver problems. This is not a complete list — tell your doctor or pharmacist about any side effects you experience.
Does Verzenio have any serious or boxed warnings?
Verzenio has notable warnings and precautions. Tell your doctor about your medical history and any other medicines or supplements you take before starting Verzenio.
When should I call my doctor about Verzenio side effects?
As a general rule with any prescription medicine, call your doctor about any side effect that is severe, doesn't go away, or worries you. General guidance is to seek emergency care for signs of a serious allergic reaction to any medicine — such as trouble breathing or swelling of the face, lips, tongue, or throat. For advice about your situation, talk to a licensed healthcare provider.
Where can I find the full list of Verzenio side effects?
The side effects above are commonly reported ones recorded for Verzenio (abemaciclib); they are not a complete list. For the full prescribing information and medication guide, check the official Verzenio label or ask your doctor or pharmacist.
Should I stop taking Verzenio if I have side effects?
General medical guidance is not to stop a prescription medicine on your own without talking to your doctor first. Your doctor can advise whether to continue, adjust, or change your treatment. This page is informational and not medical advice.