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19 Cards in this Set
- Front
- Back
Curare
- How does it work? - How is it overcome? |
Attaches to MEP and blocks muscle contraction by preventing ACh from reaching the receptor.
Is a competitive blocker because blockade can be overcome by giving more ACh or use of a cholinesterase inhibitor |
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Succinylcholine (Anectine R)
- How does it work? - How can it be overcome? |
Blocks muscle contraction by depolarizing the MEP until it becomes unresponse to ACh
Non-competitive; must be metabolized by the body |
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How do cholinesterase inhibitors function?
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Blocks the degradation of ACh by Cholinesterase, prolongs ACh, can be used as a treatment for curare
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Physostigmine
- Class of drug? |
Cholinesterase inhibitor
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Neostignine
- Class of drug? |
Cholinesterase inhibitor
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Atropine
- What does it do? - What class of drug? - What are side effects? |
Blocks muscarinic receptor (competitive antagonist) at the salivary glands
Class: Anticholinergic (Anti-parasympathetic) Side effects: "hot as a hare, blind as a bat, dry as a bone, red as a beet, and mad as a hatter" and also tachycardia, constipation, urinary retention |
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Probanthine
- What is this drug similar to? - What is this drug used for? |
Atropine
Used to treat ulcers by slowing down food movement, reducing acid |
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Nerve gas
- What kind of drug is it? - Where does it act? - What are the effects? |
anticholinesterase inhibitor at the parasympathetic ganglionic site
SLUDGE: salivation, lacrimation, urination, defecation, grand male seizures, emesis |
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Prazocin
- What it is used to treat? - What class of drugs is it? - How does it work? |
Treats high blood pressure
"Alpha Blocker" - directly blocks A1 receptor Relaxes vessels |
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How do antihypertensive drugs work?
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Deplete Norepinephrine stores or deplete its release from nerve terminals, affects A1 receptors
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What do B blockers treat?
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Angina, Hypertension, Cardiac arrhythymias, Migrane headaces
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What do amphetamine drugs do?
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Enhance the release or mimic the effects of NorEpi and Epi, will cause a mood elevating effect in the brain, increased BP, increased respiration, tachycardia
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What is chronotropy? Inotropy?
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Chronotropy - increased rate of heart
Inotropy - force of contraction of heart Both under sympathetic B1 receptor control |
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Keterolac (Toradol)
- What is it used for? - What class of medications? - How does it work? - What is a potential side effect? When was this discovered? |
Kidney stone treatment, approved for short term use for pain
NSAID Inhibits synthesis of prostaglandins If you take for more than a few weeks, causes GI bleeds phase 4 - no more than 5 days use |
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Dexfenfluramine/phenteramine (FenPhen)
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Dexfenfluramine affects serotonin, Phenteramine is a stimulant
Chronic use causes pulmonary and heart problems Pulled from market |
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Cerivastatin (Baycol)
- What class of drug? - When/why was it pulled? |
Statin
Too many myalgias and rhabdomyalgias (-> renal failure) (2001) |
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How do statins work?
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They lower cholesterol by affecting the rate limiting step of cholesterol biosynthesis, HMG-CoA
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Rofecoxib (Vioxx)
- What was it used for? - What class of drugs? - When/why was it discontinued? |
Treats osteoarthritis, acute pain and causes fewer chronic ulcers and GI bleeds than Aleve
NSAID Increased risk of heart attacks and strokes, 2004 |
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Bromfenact (Duract)
- What was it used for? - When/why was it pulled? |
Mean to be for short term pain use.
During post-marketing surveillance; When used for chronic pain (>10 days) caused liver failure Pulled from market |