A
pharmaceutical drug (also referred to as a
pharmaceutical,
pharmaceutical preparation,
pharmaceutical product,
medicinal product,
medicine,
medication,
medicament, or simply a
drug) is a
drug used to
diagnose,
cure,
treat, or
prevent disease. Drug therapy (
pharmacotherapy) is an important part of the
medical field and relies on the science of
pharmacology for continual advancement and on
pharmacy for appropriate management.