Relating to the use of chemical substances, especially drugs, to prevent the development of a disease rather than treating it after onset.
From 'chemo-' (chemical) + 'prophylactic' (preventive). A medical term combining chemotherapy concepts with disease prevention.
Chemoprophylactic drugs are like insurance policies for your health—you take them before you get sick to prevent diseases, which is often much smarter than waiting to treat them later!
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