Week 1: Antibiotic Overview Flashcards
Objectives

What is bioavailability?
Subcategory of absorption and is the fraction of an administered does of unchanged drug that reaches the systemic circulation
- Measurement of the rate and extent to which a drug reaches the systemic circulation
What is the first-pass effect?
A phenomenon of drug metabolism whereby the concentration of a drug is greatly reduced before it reaches the systemic circulation
- four primary systems that affect the first-pass effect of a drug are the enzymes of the GI lumen, gut wall, bacterial and hepatic enzymes
What is parenteral administration?
Administered by some means other than oral or rectal (IV, IM, SC)
What is bioequivalence?
FDA standards for bioavailability to insure that different formulations of the identical quantity of the same drug results in equal therapeutic response
How do drugs reach their site of action

What is enteral administration?
Intestine
- Placement of a drug directly into any part of the GI tract. includes oral (per os, p.o.), sublingual or rectal
What is parenteral administration?
Aside from intestine
- Bypassing the GI tract
- Includes Injection (subcutaneous (s.c.), intramuscular (i.m.) and intravenous (I.v.), topical application or inhalation by the lungs
What is absorption?

Stomach absorption

stomach absorption 2

Small-intestine absorption

Anatomy of the small-intestine

Large intestine & rectum absorption

Absorption from the respiratory tract

Lung absorption

Absorption from subcutaneous sites

Absorption from intramuscular sites

Intravenous absorption

Question

Question

Discuss features of distribution

Describe magnitude of distribution

Discuss magnitude of distribution II

Discuss the binding of drugs to plasma proteins and other tissue components

Describe the BBB

Discuss the BBB II

Question

Discuss the factors that influence the expression of antimicrobial activity

Describe the relationship between PCK/PCD

Describe the clinical relevance of pharmacodynamics

Describe antimicrobial pharmacodynamics

Optimizing antimicrobial therapy

Concentration-dependent vs independent

Describe pharmacodynamic relationships

Describe pharmacodynamic types of antibiotic activity

Describe peak MIC

Describe a simulated profile of high dose and conventional aminoglycoside regimens

Describe the pharmacodynamic types on antibiotic activity

Describe optimization of time above MIC with continuous infusion

Describe time-dependent antibiotic activity

Describe bactericidal patterns

Concepts for antibacterial agents

What type of antibacterial agents are there?

Describe functions of cell wall synthesis inhibitors

Describe functions of protein synthesis inhibitors

Describe functions of Nucleic Acid synthesis inhibitors

Cell wall active antibacterial agents

Protein Synthesis Inhibitor Antibacterial Agents

Nucleic Acid Synthesis Inhibitor Antibacterial Agents
