Gefitinib

What is Gefitinib?

Gefitinib is a targeted anti-cancer medicine used to treat certain types of non-small cell lung cancer (NSCLC). It belongs to a group of drugs called EGFR inhibitors, which block signals that help cancer cells grow and multiply. This treatment is commonly prescribed for patients whose tumors test positive for specific genetic changes in the EGFR pathway. When taken regularly, it helps slow cancer progression and improves breathing, energy levels, and overall quality of life.

Gefitinib used for

This medicine is primarily used to treat EGFR-mutated non-small cell lung cancer, especially when the disease has spread or cannot be removed with surgery. Doctors often select it as a first-line therapy for patients who show EGFR mutations on diagnostic tests.

Chemical Composition

The active ingredient in this medicine is Gefitinib, a small-molecule tyrosine kinase inhibitor. It is formulated as an oral tablet, usually in a 250 mg strength. The inactive components may vary by manufacturer but are designed to support stable absorption in the body.

Gefitinib Mechanism

The medicine works by blocking the epidermal growth factor receptor (EGFR) found on the surface of cancer cells. Cancer cells depend on this receptor to receive growth signals. By inhibiting EGFR, the medicine slows the division of cancer cells, reduces tumor size, and prevents the spread of cancer to other parts of the body.

How Does It Help Manage Lung Cancer?

Certain lung cancers grow rapidly because of abnormal EGFR signaling. Gefitinib targets this specific weakness, helping reduce symptoms such as coughing, chest discomfort, breathlessness, and fatigue. Many patients experience improved lung function and better daily activity levels. This targeted approach often results in fewer side effects than traditional chemotherapy.

What Are the Other Benefits?

• Helps shrink tumors in patients with EGFR-positive cancers

• Can delay disease progression

• Offers a more convenient once-daily pill option

• Often better tolerated than combination chemotherapy

• May reduce hospital visits due to fewer intense side effects

These benefits make it a valuable option for long-term cancer management when guided by a healthcare professional.

---

Dosages

Available Strengths or Dosage

Gefitinib is commonly available in:

• 250 mg tablets (standard prescription strength)

Most treatment guidelines recommend one tablet per day, but dosing may be adjusted for certain individuals based on tolerance or side effects.

How and When to Take It

• Take one tablet once daily, at the same time each day.

• It can be taken with or without food.

• Swallow the tablet whole with water.

• If you cannot swallow tablets, it may be dispersed in water as directed by a healthcare provider.

• Continue taking it exactly as your doctor advises, even if you feel better or symptoms improve.

If a dose is missed, it should only be taken if the next dose is more than 12 hours away. Double doses should be avoided.

Overdose Caution

Taking more than the prescribed dose may cause severe diarrhea, skin reactions, nausea, or breathing issues. If overdose is suspected, seek emergency medical support immediately.

---

Who Can Use/Take Gefitinib?

This medicine is approved for adults diagnosed with EGFR-mutated non-small cell lung cancer. It is not recommended for children. Both men and women can use it, provided their genetic test confirms the presence of the EGFR mutation.

It must be used with caution in people with:

• Severe liver disease

• Kidney problems

• Eye disorders

• Lung inflammation (Interstitial lung disease)

• Very low body weight

• A history of respiratory complications

Pregnant or breastfeeding women should avoid this medicine unless specifically recommended by an oncologist, as it may harm the baby.

---

Side Effects & Precautions

What Are the Side Effects?

Common side effects include:

• Diarrhea

• Skin rash or dryness

• Loss of appetite

• Nausea

• Mouth sores

• Weakness or tiredness

• Eye irritation

More serious side effects, though less common, may include:

• Severe breathing difficulty

• Liver function changes

• Persistent coughing

• Severe skin reactions

If any unusual or intense symptoms occur, medical attention is required.

What Are the Precautions to Avoid Side Effects?

• Drink plenty of water to stay hydrated.

• Protect your skin from strong sunlight.

• Avoid smoking, as it may reduce the effectiveness of treatment.

• Do not take new supplements or medicines without informing your doctor.

• Regular blood tests and lung function checks are recommended.

• Report any sudden shortness of breath or fever immediately.

Following these steps helps reduce the risk of complications and makes treatment smoother and safer.

---

Always consult your oncologist before starting treatment. If prescribed, you can order Gefitinib tablets online safely from trusted pharmacy sources and ensure timely refills to maintain your treatment progress.