Pharmacodynamics takes into account the complex interactions between the drug the human body and then the pathogen that might be causing an infection in the patient. The word pharmacokinetics is derived from the greek word pharmacon means drug.

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The term pharmacodynamics pd refers to the study of the relationship between the concentration of the drug in the body and the biological and physiological effects of the drug on the body or on other organisms bacteria parasites and so forth on or in the body.

Difference between pharmacodynamics and pharmacokinetics. In other words they both study drugs effect on organisms. So to remember it easily pharmacodynamics is the effect of the drug on the body and therefore the pharmacokinetics mean what the body does to the drug. Pharmacokinetics is the study of drug absorption distribution.

On the other hand pharmacodynamics is the study of how a medicine acts on a living organism. Pharmacokinetics influences the decided route of administration for a specific medication the amount and frequency of each dose and its dosing intervals. 1 955 total views 7 views today.

Now the difference between pharmacokinetics and pharmacodynamics is discussed below. Pharmacokinetics the branch of pharmacology concerned with the movement of drugs within the body. Pharmacokinetics is what the body does to.

So how does the antibiotic best kill the pathogen that might be causing the infection and then how can we dose the drug to optimize that killing activity profile. Pharmacodynamics the branch of pharmacology concerned with the effects of drugs and the mechanism of their action.