PHARMACOLOGY MIDTERM Flashcards

(55 cards)

1
Q

the study of what the body does to the drug.
- processes of drug undergoes as it reaches and leaves the site of action

A

PHARMACOKINETICS

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2
Q

movement of drugs from an area of HIGH TO LOW CONCENTRATION WITHOUT ENERGY requiring.

A

PASSIVE DIFFUSION

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3
Q

measure of the rate and extent of drug into the systemic circulation

A

BIOVAILABILITY

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4
Q

where does most drug metabolism occur?

A

LIVER

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5
Q

a family of enzymes that play a key role in phase 1 metabolism

A

CYTOCHROME

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6
Q

drug administration equals the rate of elimination, typically 4-5 half-lives.

A

STEADY STATE

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7
Q

higher initial dose of drug given to quickly reach therapeutic levels

A

LOADING DOSE

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8
Q

constant drug
16%
most drug
curve graph

A

1ST ORDER

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9
Q

non constant drug
independent concentration
25% - 50%
straight graph

A

ZERO ORDER

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10
Q

to determine duration of action steady state concentration

A

HALF- LIFE

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11
Q

drugs move from high to low concentration with the HELP OF CARRIER PROTEINS but NON ENERGY REQUIRING

Ex; VITAMIN B12

A

FACILITATED DIFFUSION

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12
Q

the movement of drugs across membranes against the concentration with the ENERGY REQUIRING

A

ACTIVE TRANSPORT

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13
Q

process where large drug molecules are ENGULFED by the cell membrane

A

ENDOCYTOSIS

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14
Q

it is a CELL DRINKING

A

PINOCYTOSIS

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15
Q

it is a CELL EATING

A

PHAGOCYTOSIS

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16
Q

measures of HOW MUCH
- most important

A

AUC

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17
Q

UNMASK a polar functional groups

A

PHASE 1

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18
Q

ADDITION of polar group.

A

PHASE 2

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19
Q

release of drug from the dosage form

A

LIBERATION

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20
Q

pharmacotechnical factors of liberation

A
  1. DISINTEGRATION
  2. DISSOLUTION
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21
Q

movement of GI concentration to the small intestine.

A

GET

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22
Q

drugs that increase GI motility

A
  1. METOCLOPRAMIDE
  2. DOMPERIDONE
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23
Q

drugs that decrease GI motility

A
  1. ANTICHOLINERGICS
  2. OPIOIDS
24
Q

allows determination of the absolute amount of drug absorbed from an EXTRAVASCULAR administered drug product.

A

ABSOLUTE BIOVAILABILITY

25
two or more different dosage forms given by the same route of administration
RELATIVE BIOVAILABILITY
26
maximum plasma concentration reached. most variable
CMAX
27
time it takes to reach the Cmax. least important measure of rate
TMAX
28
similarity of the BA of a drug (generic) to the BA of another drug taken as the standard (innovator)
BIOEQUIVALENCE
29
REVERSIBLE TRANSFER OF DRUG from the systemic circulation to the site of action.
DISTRIBUTION
30
fraction of the cardiac output that reaches a specific tissue or organ
REGIONAL BLOOD FLOW
31
hypothetical (apparent) volume of the body fluids required to dissolve a given amount of drug to a concentration equal to that of plasma concentration
VOLUME IOF DISTRIBUTION
32
active, ADME
unbound (free) drug
33
ADME
bound drug
34
Acidic drug
ALBUMIN
35
basic drug ex drug: Globulin
ALPHA 1- ACID GLYCOPROTEIN
36
hormones drug
GLOBULIN
37
aka. biotransformation - primary objective to convert a drug to INACTIVE, NONTOXIC, POLAR/WATER-SOLUBLE
METABOLISM
38
initial metabolism before the drug reaches the systemic circulation effect: decrease biovailability of drug
FIRST PASS EFFECT/ FIRST PASS METABOLISM
39
valproic acid isoniazid acute alcoholism azole antifungals fluoroquinolones inhibitors of?
ENZYME INHIBITOR
40
decrease metabolism activity
ENZYME INHIBITION
41
increase metabolic activity
ENZYME INDUCTION
42
phenytoin, phenobarbital rifampicin carbamazepine griseofulvin chronic alcoholism
ENZYME INDUCERS OF enzyme induction
43
carboxylic acids salicylic acid benzoic acid
glycine conjuction of phase 2
44
macrolide, amiodarone, CCB, azole antifungals, proteases inhibitor, antihistamine
CYP3A4
45
codeine, dextromethorphan, most antidepressant and ANTI-PSYCHOTICS, debrisoquin
CYP2D6
46
phenytoin, sulfonylureas, S- Warfarin
CYP2C9
47
propranolol, PPI, clopidogrel
CYP2C19
48
acetaminophen, theophylline, caffeine
CYP1A2
49
what are the 4 main processes of pharmacokinetics?
1. absorption 2. distribution 3. metabolism 4. elimination
50
the drug is absorbed into the bloodstream
absorption
51
name 4 ways drugs are absorbed
1. passive diffusion 2. facilitated diffusion 3. active transport 4. endocytosis
52
the process of removing the drug from the body, primarily through the kidneys, liver, and bile.
drug elimination
53
mnemonic helps remember the important ENZYME INDUCERS in drug metabolism
PCRABS - phenytoin, carbamazepine, rifampin, alcohol (chronic use), barbiturates, St. Johns Wort
54
mnemonic helps remember the important ENZYME INHIBITORS in drug metabolism
GPACMAN - grapefruit, protease inhibitors, azole antifungals, cimetidine, macrolides, amiodarone, non -dihydropyridine calcium channel blockers (diltiazem, verapamil)
55
mechanism of drug movement across the cell membrane
transport process