Pharmacodynamics is what you think about when you consider how a medicine will affect the human body.
The term "pharmacodynamics" describes the connection between drug concentration at the site of action and the effect that follows, including the progression and severity of therapeutic and unfavorable effects.
The interaction of a drug with a receptor at the site of action determines the drug's impact.
Pharmacodynamics: A General Overview Chemical Reactions Dose-Response Correlations Interactions between drugs and receptors
The simultaneous injection of an NSAID and phenprocoumon (an additive interaction) or aspirin and ibuprofen are examples of pharmacodynamic interactions (antagonistic interaction).
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