Introduction Flashcards
Three Types of Pharmacology
Pharmacodynamics –> What it does to body
Pharmacokinetics –> What Body does to drugs
Pharmacogenomics –> Influence of genetic variation on drug responses in patients
What four factors are considered to optimize drug therapies?
Absorption
Distribution
Metabolism
Elimination
The use of Trastuzumab is an example of?
Pharmacogenomics –> HER2 testing for breast Cancer
What three Federal legislations are important for drug therapies?
Food, Drug, Cosmetics Act: Gives FDA oversight of drug safety
Comprehensive Drug Abuse Prevention and Control Act: Security and Record Keeping of Drugs
Dietary Supplement Health and Education Act: Regulation of Labeling, Production, and claims regarding supplements
What assumption is made from Fick’s Law relating to Drug diffusion in organs?
Drugs are absorbed faster from organs with large surface areas and thinner membranes
Oral/Enteral Drug administration
Advantages: Safest, most conventioneer, and economical
Disadvantages: Must cross Digestive epithelium and vascular epithelium
Recal Drug Administration
Irregular/incomplete absorption; Half will bypass liver
Intramuscular injection
- Must avoid sciatic nerve in gluteal injection
Relatively short onset
SubQ injection
- Inactivated by GI Tract
- Slow-released drugs via simple diffusion
IV injection
- Rapid onset
- no oily solutions
- Not too fast or slow
Intradermal Injection
- Very small volumes
- Diagnostic skin testing (TB)
Intrathecal injection
- Subarachnoid space
- bypass BBB
- Possible bad reactions/side effects
Inhalation administration
- Gaseous/volatile drugs
- VERY rapid entry
- Bypass initial hepatic metabolism