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Introduction/Prof. Bernknopf
Intro and Overview-1st lecture
32
Health Care
Undergraduate 2
02/12/2007

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Cards

Term
What are the 3 properties of an ideal drug?
Definition
Effectiveness,
Safety,
Selectivity
Term
Physiological processes that affect how a patient will respond to a given drug.
Definition
Pharmacodynamics
Term
Physiological processes that affect how much of a given dose will reach the site of action.
Definition
Pharmacokinetics
Term
Name and describe the 4 stages of clinical trials.
Definition
Preclinical: Animal,
Phase 1: Normal, health volunteers; eval. drug metabolism and safety in humans,
Phase 2/3: 500-5,000 patients,
Phase 4: Post marketing surveilance
Term
What are the 4 basic pharmacokinetic processes?
Definition
Absorption, distribution, metabolism, exretion (ADME)
Term
What are the 3 ways drugs pass through membranes?
Definition
1. Passage through channels or pores
2. Passage via transport system (passive or active)
3. Direct penetration of membranes
Term
Name 5 factors that affect absorption.
Definition
1. Rate of dissolution
2. Surface area
3. Blood flow
4. Lipid solubility
5. pH partioning
Term
What is the preferred method of administration of drugs that require a large volume of fluid?
Definition
Intravenous
Term
How long does it take blood to travel through the entire system?
Definition
1 minute
Term
Blood injected into the arm takes how long to reach the brain?
Definition
15 seconds
Term
What is the preferred method of administration of drugs?
Definition
Oral
Term
What are the 3 types of oral medications?
Definition
Tablet, Enteric coated (dissolve in intestine not stomach), Sustained release (release throughout day)
Term
What is the primary protein involved in protein binding?
Definition
Albumin
Term
Where does most metabolism of drug take place?
Definition
Liver
Term
Most of the hepatic metabolism is performed by what system?
Definition
The Cytochrome P450 System
Term
How many half-lives does it take to reach a "plateau" (steady state)?
Definition
4
Term
True or False. Potency = Efficacy
Definition
False
Term
What is the term that describes the strength of the attraction between the drug and the receptor?
Definition
Affinity
Term
What is the term that describes the ability of a drug to activate the receptor after binding?
Definition
Intrinsic activity
Term
Drugs that have affinity but no intrinsic activity.
Definition
Antagonists
Term
Describe ED50
Definition
Dose required to see an effect in 50% of the population
Term
What is LD50?
Definition
Lethal dose in 50% of the animals tested
Term
LD50/ED50
Definition
Therapeutic index
Term
Name the 5 CYP450 enzymes responsible for drug metabolism.
Definition
CYP1A2, CYP2C9, CYP2C19, CYP2D6, CYP3A4
Term
What type of juice can inhibit metabolism of certain drugs by inducing CYP3A4?
Definition
Grapefruit. Mmmmm Tasty!
Term
What is the before and after time period you are allowed to take a drug when it says "Take on empty stomach"?
Definition
1 hour before/ 2 hours after
Term
Name the herb that causes the largest herb/drug interactions.
Definition
St. John's Wort
Term
Name 3 drugs that are known for causing allergic rxns.
Definition
Sulfonamides
Aspirin
Penicillins
Term
What are the 3 symptoms you should look for when monitoring liver toxicity?
Definition
1. Jaundice
2. Dark urine
3. light-colored stools
Term
True or False. In the elderly drug accumulation may be secondary to decreased renal excretion.
Definition
True
Term
True or False. Creatine Clearance should be used as an index of renal function NOT serum creatine.
Definition
True
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