Based on the classification system of pharmacodynamics, which category statements are accurate? (Select all that apply.)

A. Replacement medications provide needed physiological components: Replacement therapy provides substances that the body is deficient in, such as insulin for diabetes. B. Destructive medications are always curative: Destructive medications, such as chemotherapeutic agents, may destroy pathological cells but are not always curative. C. Palliative therapy provides pain relief: Palliative therapy aims to relieve symptoms and improve quality of life rather than cure. D. Diagnostic drugs help to identify pathological processes: Diagnostic drugs are used in tests and procedures to help identify and diagnose diseases. E. Prophylactic medications are curative: Prophylactic medications are used to prevent diseases, not cure them.