: Specifically refers to antimicrobial substances naturally produced by microorganisms (like penicillin) or their semi-synthetic derivatives.

This guide provides an overview of (antimicrobial agents), covering their definitions, how they are tested in clinical settings, and the principles for using them effectively to combat resistance. 1. Defining Antimicrobics

: Preventing the transcription of genetic code. 3. Antimicrobic Susceptibility Testing (AST)

: The overarching category for all drugs that kill or inhibit microbes, including synthetic chemicals.

Testing is used to determine which specific antimicrobic will be effective against a particular pathogen. Common methods include:

"Antimicrobic" is a broad term used for any compound that . While often used interchangeably with "antibiotic," there are key distinctions:

: Major types include antibacterials (oral and topical), antifungals , and antiseptics . 2. Mechanism of Action

: The lowest concentration of an antimicrobic required to prevent visible growth of the pathogen.