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93 Cards in this Set
- Front
- Back
cabamazepine toxicity
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hepatotoxicity
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effect of rifampin on estrogen
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rifampin caues an increase in estrogen metabolism in the liver (makes estrogen birth control less effective)
(induces CYP450) |
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drugs with medium Vd distribute in the
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extracellular space
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drugs with high Vd distribute in the
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tissue
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Cl =
(2 equations) |
Cl = rate of drug elimination/plasma concentration(Cp)
Cl = Vd x Ke |
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overdose of weak base treated with
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ammonium chloride
(weak bases get trapped in acidic environments because they accept a proton) |
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NT that activates renal vascular smooth muscle
branch of ANS |
DA
sympathetic |
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Receptors and G-protein class
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α1 - q
α2 - i β1 - s β2 - s M1 - q M2 - i M3 - q D1 - s D2 - i H1 - q H2 - s V1 - q V2 - s Kiss (qiss) Kick (qiq) until you're Sick (siq) of Sex (sqs) |
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decreased insulin release caused by stimulation of
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α2
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increased renin release caused by stimulation of
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β1
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increased lipolysis caused by stimulation of
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β1
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increased aqueous humor formation caused by stimulation of
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β1
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vasodilation caused by stimulation of
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β2
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increased release of glucagon caused by stimulation of
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β2
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relaxation of renal vascular smooth muscle caused by stimulation of
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D1
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NT release by the brain caused by stimulation of
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D2
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contraction of bronchioles caused by stimulation of
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H1
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increased vascular smooth muscle contraction is caused by stimulation of
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V1
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Gq pathway
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PLC --> PIP2 --> IP3 + DAG --> Ca2+
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function of IP3
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increases influx of Ca2+
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function of DAG
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stimulates PKC
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cAMP stimulates
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PKA
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choline uptake into presynaptic nerve terminals is inhibited by
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hemicholinium
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packaging of ACh into presynaptic vessicles is inhibited by
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vasamicol
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conversion of tyrosine to DOPA is inhibited by
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metyrosine
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entrance of DA into presynaptic vessicle is inhibited by
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reserpine
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release of NE from presynaptic nerve terminals in inhibited by
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guanethidine
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release of NE from presynaptic nerve terminals is stimulated by (2)
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amphetamine
ephedrine |
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uptake of NE by presynaptic nerve terminals is inhibited by (2)
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cocaine
TCA's |
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receptors found on presynaptic adrenergic nerve terminals (3)
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M1
Angiotensin II α2 (serves as negative feedback) |
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cholinomimetics:
direct agonists (4) |
bethanechol
carbachol pilocarpine methacholine |
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direct-acting cholinomimetic used to treat postoperative and neurogenic ileus and urinary retention
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bethanechol
|
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direct-acting cholinomimetic used to treat glaucoma
MOA (2) - open angle glaucoma - narrow angle glaucoma |
carbachol
open angle: contraction of ciliary muscle --> ↑ aqueous humor outflow --> ↓ IOP narrow angle: contraction of pupillary sphincter --> ↑ aqueous humor outflow --> ↓ IOP |
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direct-acting cholinomimetic that causes perspiration, lacrimation, and salivation
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pilocarpine
|
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direct-acting cholinomimetic used in the challenge test for diagnosis of asthma
MOA |
methacholine
stimulates muscarinic receptors located in the airway --> bronchoconstriction |
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cholinomimetics:
indirect agonists (5) |
neostigmine
pyridostigmine physostigmine edrophonium echothiophate |
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neostigmine is used to treat (3)
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postoperative and neurogenic ileus and urinary retention
myasthenia gravis reversal of NMJ blockade |
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neostigmine has no
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CNS penetration
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pyridostigmine is used to treat
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myasthenia gravis
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T/F pyridostigmine penetrates the CNS
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true
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physostigmine is used to treat (2)
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glaucoma (crosses BBB)
atropine OD |
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echothiophate is used to treat
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glaucoma
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cholinergic receptor blockers (7)
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atropine
benztropine scopolamine tropicamide ipratropium oxybutin glycopyrrolate |
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cholinergic receptor blockers that causes mydriasis and cycloplegia (2)
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atropine
tropicamide |
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benztropine is used to treat
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PD
|
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methscopolamine is used to treat
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urgency in mild cystitis and bladder spasms
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oxybutin is used to treat
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urgency in mild cystitis and bladder spasms
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glycopyrrolate is used to
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urgency in mild cystitis and bladder spasms
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airway secretions are decreased by
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atropine
|
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can cause acute angle-closure glaucoma in the elderly
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atropine
|
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can cause urinary retention in men with prostatic hypertrophy
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atropine
|
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can cause hyperthermia in infants
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atropine
|
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hexamtheonium is used in experimental models to
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prevent vagal reflex responses to changes in blood pressure
(prevents reflex bradycardia caused by NE release) |
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epinephrine
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α1
α2 β1 β2 |
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low-dose Epi is selective for
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β1
|
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norepinephrine
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α1
α2 β1 (minor) |
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isoproterenol
|
β1
β2 |
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DA
|
D1
D2 |
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DA is used to treat (2)
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shock (increases renal perfusion)
heart failure |
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dobutamine
|
β1
β2 (minor) |
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ephedrine is used to treat (2)
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nasal congestion
urinary incontinence |
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phenylephrine
|
α1
α2 (minor) |
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albuterol
|
β1 (minor)
β2 |
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terbutaline
|
β1 (minor)
β2 |
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α-methyldopa
|
α2
|
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clonidine and α-methyldopa are used to treat
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hypertension in pts. with renal disease (do not cause a decrease in renal blood flow)
|
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change in PP with Epi
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very wide PP
α1 causes SBP to increase β2 causes DBP to decrease |
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isoproterenol:
change in BP |
decreased DBP (β2)
|
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phenoxybenzamine
reversible? |
blocks α1 and α2
no |
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phenoxybenzamine is used to treat
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pheochromocytoma
|
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phentolamine
reversible? |
blocks α1 and α2
yes |
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"-azosin" toxicity
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1st-dose orthostatic hypotension
|
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mirtazapine
|
blocks α2
|
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mirtazapine is used to treat
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depression
|
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mirtazapine toxicities (2)
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increased serum cholesterol
increased appetite |
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β-blockers vs. renin secretion
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β-blockers cause a decrease in renin secretion by blocking β1
|
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β-blockers decrease mortality assocaited with
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MI's
|
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β-blockers slow progression of
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CHF
|
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timolol is used to treat
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glaucoma
|
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selective, i.e., β1, β-blockers
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A --> M
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nonselective β-blockers
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N --> Z
|
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types of drugs used to treat glaucoma (5)
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α-agonists
β-blockers diuretics cholinomimetics prostaglandin analogs |
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α-agonists used to treat glaucoma (2)
|
epinephrine
brimonindine |
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MOA of epinephrine in treating glaucoma
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increases outflow of aqueous humor
|
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MOA of brimonidine in treating glaucoma
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decreases production of aqueous humor
|
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MOA of β-blockers in treating glaucoma
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decrease production of aqueous humor
|
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diuretic used to treat glaucoma
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acetazolamide
|
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MOA of acetazolamide in treating glaucoma
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decrease production of aqueous humor due to a decrease in bicarbonate
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MOA's of cholinomimetics in treating glaucoma (3)
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increase outflow of aqueous humor
contract ciliary muscle --> open trabecular meshwork open canal of Schlemm |
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cholinomimetic used in treating glaucoma emergencies
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pilocarpine
|
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prostaglandin analog used to treat glaucoma
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latanoprost (PGF2α)
|
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MOA of latanoprost
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increase outflow of aqueous humor
|
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latanoprost toxicity
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darkens color of iris ("browning")
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