Pharmacodynamics
Pharmacodynamics
Pharmacodynamics (pronounced: far-ma-ko-dy-nam-iks) is the study of the biochemical and physiological effects of drugs on the body or on microorganisms or parasites within or on the body and the mechanisms of drug action and the relationship between drug concentration and effect.
Etymology
The term Pharmacodynamics comes from the Greek words pharmakon meaning "drug" and dynamis meaning "power".
Related Terms
- Pharmacokinetics: The study of how the body affects a specific drug after administration.
- Pharmacology: The branch of medicine concerned with the uses, effects, and modes of action of drugs.
- Biochemistry: The branch of science concerned with the chemical and physicochemical processes and substances that occur within living organisms.
- Physiology: The branch of biology that deals with the normal functions of living organisms and their parts.
Understanding Pharmacodynamics
Pharmacodynamics is a crucial part of pharmacology and is used to understand how drugs work within the body. It involves the study of the interactions between the biochemical and physiological functions of the body and drugs. This includes the study of the mechanisms of drug action, the therapeutic effects, and the side effects of drugs.
Pharmacodynamics is closely related to pharmacokinetics, which is the study of how the body processes a drug, including absorption, distribution, metabolism, and excretion. Together, pharmacodynamics and pharmacokinetics help to determine the dosage, route, and frequency of administration of a drug.
Pharmacodynamics is also related to biochemistry and physiology, as it involves understanding the chemical and physiological processes within the body that interact with drugs.
See Also
External links
- Medical encyclopedia article on Pharmacodynamics
- Wikipedia's article - Pharmacodynamics
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