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1. Vitamin K cycle and drugs acting on it

2. Mechanism of methotrexate and 5-flurouracil

3. Mechanism of action of aspirin as anti-platelet-aggregation agent.

4. Mechanism of action of corticosteroid as anti-inflammatory agent

5. Aspirin vs. corticosteroid as drugs acting on eicosanoid synthetic pathway

6. Mechanism of action of various anticancer drugs