Like all medicines, ribociclib can cause side effects.
Not every patient experiences the same effects, and the severity can vary.
Commonly Reported Effects
Possible side effects may include:
- Low white blood cell counts
- Fatigue
- Nausea
- Vomiting
- Diarrhea
- Constipation
- Headache
- Hair thinning or hair loss
- Decreased appetite
- Rash
Some side effects may be manageable, while others can require treatment interruption or dose adjustment.
Low White Blood Cell Counts
Ribociclib can reduce certain blood cell counts.
A low white blood cell or neutrophil count can increase the risk of infection.
Contact a healthcare professional if symptoms of infection develop.
These may include:
- Fever
- Chills
- Sore throat
- Persistent cough
- Burning during urination
- Other signs of infection
Liver Problems
Ribociclib can affect liver function.
Healthcare professionals may monitor liver enzymes through blood tests.
Possible warning signs can include:
- Yellow skin or eyes
- Dark urine
- Severe tiredness
- Pain in the upper abdomen
- Unusual nausea
Heart Rhythm Changes
Ribociclib may affect the heart’s electrical rhythm.
Patients should seek medical advice for symptoms such as:
- Palpitations
- Dizziness
- Fainting
- Unexplained severe weakness
Lung Problems
Serious lung-related reactions can occur.
Seek medical attention for:
- New or worsening shortness of breath
- Persistent cough
- Chest discomfort
- Difficulty breathing
When to Seek Urgent Help
Seek urgent medical attention for severe or rapidly worsening symptoms.
Always inform healthcare professionals that you are taking ribociclib.