key-lock principle

Pharmaceutical Active Ingredient

Definition Active ingredients are the active components of a drug that are responsible for its pharmacological effects. Drugs may contain a single active ingredient, multiple active ingredients, or complex mixtures such as herbal extracts. In addition to the active ingredients, a drug contains various excipients that should be as pharmacologically inert as possible. The percentage … Pharmaceutical Active Ingredient

Key Lock Principle: Function, Tasks, Role & Diseases

The lock-and-key principle describes a system of complementary structures that interlock like a key in a lock and trigger certain body processes with this complex formation. The principle is also known as the hand-in-glove principle or induced-fit concept and plays a role for all receptor-substrate complexes. The principle is also crucial for pathological processes such … Key Lock Principle: Function, Tasks, Role & Diseases