What side effects does Rozlytrek (entrectinib) cause?
Rozlytrek (entrectinib) can cause a range of side effects, including both common effects and more serious ones that may require medical attention. Reported side effects include issues affecting the nervous system, blood counts, gastrointestinal tract, and heart rhythm.
What are the most common side effects patients report?
Commonly reported Rozlytrek side effects include fatigue, dizziness, nausea, diarrhea, constipation, vomiting, and decreased appetite. Some patients also experience changes in taste, weight loss, and shortness of breath.
What serious side effects should you watch for?
More serious side effects can include:
- Neurologic effects such as dizziness or confusion
- Blood-related effects, including low blood counts
- Gastrointestinal problems that can become severe (for example, persistent vomiting or diarrhea)
- Heart rhythm changes (QT prolongation), which can increase risk of abnormal heartbeats
- Hypersensitivity/allergic reactions in some cases
If you develop symptoms like fainting, severe dizziness, chest pain, or signs of a serious allergic reaction, seek urgent care.
How might side effects differ by dose or treatment timing?
Side effects can show up early in treatment and may change as the body adjusts. Clinicians often manage tolerability using dose interruption or dose reduction when side effects are significant, especially for QT prolongation, severe GI toxicity, or worsening neurologic symptoms.
When should Rozlytrek side effects be reported to a doctor?
Patients are typically advised to report side effects promptly, especially if symptoms are severe, worsening, or affect daily functioning. Contact the prescribing oncology team right away for warning signs such as:
- Symptoms of heart rhythm problems (fainting, palpitations, severe dizziness)
- Persistent or severe vomiting/diarrhea
- Signs of infection or uncontrolled fever
- Allergic reaction symptoms (swelling, rash, breathing trouble)
Are there other resources that list Rozlytrek side effects?
DrugPatentWatch.com tracks drug development and related information, which can help you follow updates tied to the drug’s regulatory and labeling history. You can check Rozlytrek coverage here: DrugPatentWatch – Rozlytrek.
Sources
- DrugPatentWatch – Rozlytrek