Medical MCQ-The process by which the amount of a drug in the body decreases after administration, but before entering the systemic circulation is called:

The process by which the amount of a drug in the body decreases after administration, but before entering the systemic circulation is called:

Excretion

First pass effect

First order elimination

Metabolism

Question Category:

Pharmacology

Correct Answer:

First pass effect

Description:

Reduction in the amount of drug before it enters the systemic circulation is called first pass metabolism (also known as first pass effect) whereas, if the amount of drug decreases after entry into the systemic circulation, it is called elimination. Latter includes excretion and metabolism.

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