Alectinib is a cancer medicine used to treat a specific type of lung cancer called ALK-positive non-small cell lung cancer (NSCLC). It is sold under the brand name Alecensa.

How It Works

Alectinib belongs to a group of drugs called ALK inhibitors (Anaplastic Lymphoma Kinase inhibitors). It works by blocking the ALK protein’s activity, which can cause cancer cells to grow and spread. By stopping this protein, Alectinib can slow or stop tumor growth.

Who Uses It

Doctors prescribe Alectinib for adults with ALK-positive metastatic non-small cell lung cancer, especially when the cancer has spread or when other treatments didn’t work. Alectinib may also be used after surgery in some cases.

How It Is Taken

• Alectinib is taken by mouth (oral tablets).
• The usual dose is around 600 mg twice a day (your doctor will decide the exact dose).
• It is usually taken with food to help absorption.

Common Side Effects

Some people may experience:

• Tiredness
• Constipation
• Muscle pain
• Swelling (edema)
  These side effects are common but often manageable under a doctor’s care.

Serious Side Effects (Tell Your Doctor)

Tell your doctor right away if you notice:

• Breathing problems
• Liver problems (like yellow skin or eyes)
• Slow heartbeat

These can be serious and need immediate medical attention.

Alectinib is a targeted cancer drug that blocks a specific protein that helps cancer cells grow. It’s mainly used in certain lung cancers where that protein is overactive. It helps slow tumor growth and is taken by mouth under close medical supervision.