Drug Factors Influencing Reactions - Video Lesson

Hey, everybody. Welcome to today's lesson about pharmacodynamics. This lesson discusses drug factors influencing reactions, specifically dose response relationships and drug drug interactions. Understanding these principles is critical for health care professionals in prescribing and administering medications safely and effectively. Let's get started. The dose response relationship explains the relationship between the dose of a drug administered and the body's response to the drug. This relationship is typically based on observed data from clinical studies and guides health care professionals in determining the right dose to achieve the desired therapeutic effect without causing toxicity. Two factors that play a role in determining the dose response relationship of medication are potency and efficacy. Potency is the amount of a drug needed to produce a specific effect. For instance, morphine is more potent than