Sunitinib (sunitinib malate) — Uses, Dosage, Side Effects & Safety

Drug class: Tyrosine kinase inhibitor (antineoplastic agent)

Overview

Sunitinib is a prescription medicine used to treat certain types of cancer, including advanced kidney cancer (renal cell carcinoma), gastrointestinal stromal tumors (GIST) that cannot be surgically removed or have spread, and pancreatic neuroendocrine tumors (pNET). It works by blocking specific proteins (tyrosine kinases) that help cancer cells grow and multiply. By interfering with these proteins, sunitinib slows or stops the growth of cancer cells and may also prevent the formation of new blood vessels that supply tumors. This targeted approach helps limit the spread of cancer while aiming to minimize damage to healthy cells. Key points for patients: Sunitinib is usually taken once daily in cycles (periods of taking the drug followed by rest). Regular monitoring is important, as side effects can occur and may require dose adjustments. Always follow your healthcare provider's instructions and report any unusual symptoms.

Frequently Asked Questions about Sunitinib

What types of cancer does sunitinib treat?

Sunitinib is used to treat advanced renal cell carcinoma (kidney cancer), gastrointestinal stromal tumors (GIST) that cannot be removed or have spread, and pancreatic neuroendocrine tumors (pNET).

How long will I need to take sunitinib?

The duration of treatment depends on your cancer type, response to therapy, and side effects. Your doctor will determine the best schedule for you, often in cycles of 4 weeks on and 2 weeks off.

Can I take sunitinib with food?

Yes, sunitinib can be taken with or without food. Take it at the same time each day for best results.

What should I do if I develop severe side effects?

Contact your healthcare provider immediately if you experience severe or unusual symptoms, such as chest pain, severe headache, yellowing of the skin or eyes, or signs of infection.

Are there any foods or drinks I should avoid?

Avoid grapefruit and grapefruit juice, as they can increase the risk of side effects by raising sunitinib levels in your blood.

Is sunitinib safe during pregnancy or breastfeeding?

Sunitinib may harm an unborn baby and is not recommended during pregnancy or breastfeeding. Use effective contraception during treatment and discuss risks with your doctor.

How will my doctor monitor my treatment?

Your doctor will regularly check your blood pressure, heart function, liver and thyroid tests, and blood counts to monitor for side effects and adjust your treatment as needed.

Educational information only. Always consult a qualified healthcare professional before starting, stopping, or changing any medication.