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Pharmacology > Drugs to Know > Flashcards

Drugs to Know Flashcards

(40 cards)

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1
Q

Phenobarbital

Class

Clinical Use

Mechanism

A

Barbituate

Intravenous anesthesia and treatment of epileptic seizures

Binds toGABAA-R receptors ->potentiatesANDdirectly activatesGABAA-R receptors -> neuronal inhibition ->sedation, hypnosis, anterograde amnesia, muscle relaxation

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2
Q

Alprazolam

Class

Clinical Use

Mechanism

A

Benzodiazepine

Treatment of anxiety disorders, withdrawal, epilepsy, and insomnia

Binds toGABAA-R receptors ->potentiatesGABAA-R receptor action -> neuronal inhibition -> sedation, hypnosis, anterograde amnesia, muscle relaxation

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3
Q

Diazepam

Class

Clinical Use

Mechanism

A

Benzodiazepine

Treatment of anxiety disorders, withdrawal, epilepsy, and insomnia

Binds toGABAA-R receptors ->potentiatesGABAA-R receptor action -> neuronal inhibition -> sedation, hypnosis, anterograde amnesia, muscle relaxation

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4
Q

Flumazenil

Class

Clinical Use

Mechanism

A

Benzodiazepine antidote

Counteracts the sedative/hypnotic effects of benzodiazepines

Competitively inhibitsGABAA-R receptors -> relief of neuronal inhibition

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5
Q

Alpha-methyltyrosine

Class

Clinical Use

Mechanism

A

Indirect sympatholytic

Treatment of pheochromocytoma

Inhibits tyrosine hydroxylase (tyrosine -> DOPA) -> inhibits catecholamine synthesis -> inhibits adrenergic stimulation

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6
Q

Guanethidine

Class

Clinical Use

Mechanism

A

Indirect sympatholytic

Treatment of hypertension, especially during pregnancy

Inhibits pre-synaptic release of norepinephrine from storage vesicles -> inhibits adrenergic stimulation

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7
Q

Reserpine

Class

Clinical Use

Mechanism

A

Indirect sympatholytic

Antihypertensive

InhibitsVMAT2-> inhibition of vesicular storage of norepinephrine and dopamine -> destruction of norepinephrine and dopamine byMAO->depletionof norepinephrine and dopamine nerve terminals

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8
Q

Amphetamine

Class

Clinical Use

Mechanism

A

Indirect sympathomimetic

Treatment of ADHD

Causes pre-synaptic release of norepinephrine from the mobile pool -> indirect adrenergic stimulation

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9
Q

Tyramine

Class

Clinical Use

Mechanism

A

Indirect sympathomimetic

Induce fat loss, increase glucose uptake, affects blood pressure

Causes pre-synaptic release of norepinephrine from the mobile pool -> indirect adrenergic stimulation

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10
Q

Ephedrine

Class

Clinical Use

Mechanism

A

Indirect sympathomimetic*

Nasal decongestant

“1) Causes pre-synaptic release of norepinephrine from the mobile pool -> indirect adrenergic stimulation (strong)
2) Directly activates post-synaptic adrenergic receptors (weak)”

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11
Q

Cocaine

Class

Clinical Use

Mechanism

A

Indirect sympathomimetic

Local anesthesia + local vasoconstriction

“1) Inhibits uptake-1 (neuronal) of norepinephrine -> synaptic accumulation of NE -> indirect adrenergic stimulation
2) Inhibits voltage-gated Na+channels -> prevents membrane depolarization and action potential generation -> neuronal inhibition”

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12
Q

Lidocaine

Class

Clinical Use

Mechanism

A

Local anesthetic (amide)

Local anesthesia

Inhibits voltage-gated Na+channels -> prevents membrane depolarization and action potential generation -> neuronal inhibition

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13
Q

Pilocarpine

Class

Clinical Use

Mechanism

A

MAchR agonist

Treatment of glaucoma, xerostemia; diagnosis of cystic fibrosis

Activation of MAchR -> increased vagal tone

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14
Q

Dopamine

Class

Clinical Use

Mechanism

A

Mixed adrenergic agonist

Treatment of decompensated congestive heart failure (with medium doses -> β1)

D > β1>α

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15
Q

Epinephrine

Class

Clinical Use

Mechanism

A

Mixed adrenergic agonist

Treatment of cardiac arrest, cardiogenic shock, severe hypotension, anaphylaxis and asthma

β2>β1>α1>α2

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16
Q

Norepinephrine

Class

Clinical Use

Mechanism

A

Mixed adrenergic agonist

Treatment of cardiac arrest, cardiogenic shock, and severe hypotension

β1≥α1>α2

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17
Q

Phenylephrine

Class

Clinical Use

Mechanism

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A

α1 agonist

Nasal decongestant and dilation of pupils

Activation of α1 receptors -> smooth muscle contraction -> vasoconstriction (nasal decongestion) + mydriasis

18
Q

Clonidine

Class

Clinical Use

Mechanism

Study These Flashcards
A

α2 agonist

Treatment of hypertension

Activation of presynapticα2receptors -> decreased sympathetic outflow -> decreased blood pressure

19
Q

Phenoxybenzamine

Class

Clinical Use

Mechanism

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A

α antagonist (nonspecific)

Treatment of hypertension (especially in patients with pheochromocytoma)

Irreversibly inhibitsα1andα2receptors-> dilation of vascular smooth muscle -> decreased blood pressure

20
Q

Phentolamine

Class

Clinical Use

Mechanism

Study These Flashcards
A

α antagonist (nonspecific)

Treatment of hypertension (especially in patients with pheochromocytoma)

Reversibly inhibitsα1andα2receptors-> dilation of vascular smooth muscle -> decreased blood pressure

21
Q

Doxazosin

Class

Clinical Use

Mechanism

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A

α1 antagonist

Treatment of hypertension and benign prostatic hyperplasia

α1-receptor blockade -> vasodilation -> decreased blood pressure

22
Q

Isoproterenol

Class

Clinical Use

Mechanism

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A

β agonist (nonspecific)

Treatment of bradycardia, heart block, and bronchospasm

“Activation ofβ1receptors -> increased heart rate, contractility, conductivity
Activation ofβ2receptors -> bronchodilation”

23
Q

Dobutamine

Class

Clinical Use

Mechanism

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A

β1 agonist

Treatment of decompensated congestive heart failure

β1 receptor activation -> increased heart rate, contractility, conductivity

24
Q

Albuterol

Class

Clinical Use

Mechanism

Study These Flashcards
A

β2 agonist

Relief of asthma-related bronchospasm

β2 receptor activation -> relaxation of smooth muscle -> bronchodilation

25
Terbutaline Class Clinical Use Mechanism
β2 agonist Relief of asthma-related bronchospasm β2 receptor activation -> relaxation of smooth muscle -> bronchodilation
26
Propanolol Class Clinical Use Mechanism
β antagonist (nonspecific) Treatment of ischemic heart disease, hypertension, and tachyarrhythmias "β1-receptor blockade -> decreased heart rate, conductivity, and contractility β2-receptor blockade -> vasoconstriction"
27
Metoprolol Class Clinical Use Mechanism
β1 antagonist Treatment of ischemic heart disease, hypertension, and tachyarrhythmias β1-receptor blockade -> decreased heart rate, conductivity, and contractility
28
Esmolol Class Clinical Use Mechanism
β1 antagonist Treatment of ischemic heart disease, hypertension, and tachyarrhythmias (shorter acting than metoprolol) β1-receptor blockade -> decreased heart rate, conductivity, and contractility
29
ACE (angiotensin converting enzyme) inhibitors Class Clinical Use Mechanism
Inhibitor of renin-angiotensin system Treat hypertension Block the angiotensin converting enzyme (ACE), inhibit the conversion of angiotensin I to angiotensin II -> vasoconstriction, reduced BP
30
Acetaminophen Class Clinical Use Mechanism
Analgesic, Antipyretic Treat mild to moderate pain, reduce fever Acts primarily in CNS, increases pain threshold by indirectly inhibiting cyclooxygenase in prostaglandin synthesis
31
ADH (anti-diuretic hormone, aka vasopressin) Class Clinical Use Mechanism
Posterior Pituitary Hormone Prevents water loss in the kidney, restores BP in hypovolemic shock Released by posterior pituitary when water deprivation causes increased plasma osmolarity or when cardiovascular system is challenged by hypovolemia and/or hypotension, increases peripheral vascular resistance (vasoconstriction) and increases arterial blood pressure, promotes release of coagulation factors by vascular endothelium, increases platelet aggregability
32
Aldosterone Class Clinical Use Mechanism
Steroid Hormone (Mineralocorticoid) Increases systemic blood pressure, augments potassium and hydrogen excretion Acts on distal tubules and collecting ducts of nephron, increases sodium & water reabsorption
33
Angiotensin II Class Clinical Use Mechanism
Vasoactive octapeptide produced by angiotensin I Stimulates vascular smooth muscle, promotes aldosterone produciton, stimulates SNS Inhibits renin release
34
Bradykinin Class Clinical Use Mechanism
Kinin, acts on bradykinin receptors B1 and B2 (GPCRs) Treats hypertension (vasodilator), contracts non-vascular smooth muscle in the bronchus & gut, increases vascular permeability, causes natriuresis Raises internal Ca levels, causes neocortical astrocytes to release glutamate; also converted bo inactive metabolites by ACE, so ACEIs increase levels, cause bronchoconstriction
35
Desipramine Class Clinical Use Mechanism
Tricyclic Antidepressant (TCA) Treats depression, neuropathic pain, ADHD, & cocaine withdrawal Inhibits reuptake of NE (& SE)
36
Enalapril Class Clinical Use Mechanism
ACEI Treats hypertension, diabetic nephropathy, & some types of chronic heart failure Prevents conversion of ang I to ang II, inhibits vasoconstricting effects of ang II, decreases BP
37
Histamine Class Clinical Use Mechanism
Targets histamine receptors (GPCRs) Involved in local immune responses and inflammatory responses, stimulates gastric secretion, constricts bronchial smooth muscle, vasodilator, treats hypertension Acts directly on blood vessels to dilate arteries & capilaries via histamine receptors
38
Nicotine Class Clinical Use Mechanism
Nicotinic acetylcholine receptor agonist Treats nicotine dependence Enters body, quickly distributed through bloodstream, crosses BBB, metabolized in liver
39
Phenytoin Class Clinical Use Mechanism
Antiepileptic drug Treats seizures Binds to inactive form of sodium channels, blocks sodium-dependent action potentials
40
Renin Class Clinical Use Mechanism
Renin-Angiotensin System Enzyme Activates the renin-angiotensin system, increases BP to restore perfusion pressure in kidneys Renin cleaves angiotensinogen -> ang I, ACE converts ang I -> ang II, ang Ii constricts blood vessels, increases secretion of ADH & aldosterone, & stimulates hypothalamus to activate thirs treflex, results in increased blood pressure

Pharmacology (1 decks)

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