Anticancer Drugs: Classification, Mechanism, Uses & Side Effects

📌 Introduction  

Anticancer drugs are used in the treatment of cancer by inhibiting the growth and spread of abnormal cells. Cancer is a condition characterized by uncontrolled cell division.

This topic is very important for GPAT, DSSSB, and other pharmacy exams.

🔍 What is Cancer?  

Cancer is a disease in which cells grow uncontrollably and may spread to other parts of the body (metastasis).

Common types:

• Breast cancer  

• Lung cancer  

• Blood cancer (leukemia)  

📝 Classification of Anticancer Drugs  

Anticancer drugs are classified into:

Alkylating agents  

Examples: Cyclophosphamide  

Antimetabolites  

Examples: Methotrexate  

Antibiotics (Antitumor)  

Examples: Doxorubicin  

Plant alkaloids  

Examples: Vincristine  

Hormones  

Examples: Tamoxifen  

🧬 Mechanism of Action  

• Alkylating agents → damage DNA  

• Antimetabolites → inhibit DNA synthesis  

• Antibiotics → interfere with DNA replication  

• Plant alkaloids → inhibit mitosis  

🩺 Pharmacological Effects  

• Inhibit cancer cell growth  

• Destroy tumor cells  

• Prevent metastasis  

💊 Therapeutic Uses  

Used in:

• Leukemia  

• Breast cancer  

• Lung cancer  

• Lymphoma  

🚨 Side Effects  

• Bone marrow suppression  

• Hair loss (alopecia)  

• Nausea and vomiting  

• Immunosuppression  

📑 Important Exam Points  

• Methotrexate → antimetabolite  

• Cyclophosphamide → alkylating agent  

• Vincristine → inhibits mitosis  

• Combination therapy is common  

🛑 Precautions  

• Monitor blood counts  

• Avoid infections  

• Use supportive therapy  

🎯 Conclusion  

Anticancer drugs are essential in cancer treatment. Understanding classification, mechanism, uses, and side effects is crucial for exams and clinical practice.

👉 Practice MCQs in evening post

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