Potions, poisons and prescribing Flashcards
1
Q
What’s a drug?
A
Official - A drug is a chemical substance of known structure (other than a nutrient or essential dietary ingredient) which, when administered, produces a biological effect
(Lay - Something introduced to the body that has a measurable effect)
2
Q
What’s the BIOAVAILABILITY of a drug?
A
% that gets from the stomach into the blood in an active form
The proportion of pharmacologically active drug that reaches the systemic circulation following oral administration
3
Q
What is THERAPEUTIC INDEX?
A
Ratio of the maximum tolerated dose before an adverse drug reaction occurs vs. the minimum effective therapeutic dose
4
Q
What are the 4 stages of pharmacokinetics?
A
Absorption
Distribution
Metabolism
Excretion
