Receptor Theory

Receptor Theory explains how drugs produce their effects by interacting with specific molecules called receptors in the body. Think of receptors as tiny lock-and-key sites on cells; drugs act as keys that bind to these locks, triggering a response such as relief from pain or lowered blood pressure. The strength and effectiveness depend on how well the drug fits the receptor and how many receptors are available. This theory helps us understand how different drugs work and how to develop medications that target specific signals in the body effectively.