It is concerned with setting and controlling the appropriate therapeutic doses and following up patients who are taking Anti-coagulant medications, so that these patients are treated within the accurate and correct medication strengths, doses due to its highly side effect, and providing each patient with the necessary pharmaceutical Reconciliation regarding these drugs and its interactions with other medications or Food, these services are provided by qualified and specialized clinical pharmacists to ensure maximum benefit from the treatment and patient is not exposed to any side effect, which might affect his life.