All meds MoA Flashcards
Proton pump inhibitor
decrease acid secretions by binding to H+,K-ATPase enzyme
h2 receptor antagonist
block h2 receptors in parietal cells to decrease acid production in daytime and nocturnal
antacids
react with gastric acids to produce neutral salt, alter systemic pH, EXCEPT FOR BICARBONATE
bismuth compounds
stimulate mucosal bicarbonate and prostaglandin production, inhibit h.pylori from adhering to tissue
sucralfate
stimulate mucus, bicarbonate and prostaglandin secretion, coat stomach to form barrier
1st gen receptor antagonist
block main histamine receptors
2nd gen h1 receptor agonist
compete with histamine for h1 receptor in peripheral
intranasal corticosteroid
inhibit mast cells, microphages and inflamm mediators, vasoconstriction
pseudoephedrine
activate alpha-adrenergic receptors, cause vasoconstriction in nasal mucosa
nonopioid antitussive
act on cough center in medulla
guaifenesin
(expectorant) irritate respiratory tract, loosen and thin secretion
acetylcystine
(mucolytic) breakdown proteins in mucus to make thinner
beta2 adrenergic agonist
bind to beta2 adrenergic receptors in bronchial smooth muscle to cause bronchodilation
anticholinergic
block cholinergic receptors in bronchial smooth muscle, decrease nasal hypersecretion
corticosteroid
decrease inflammatory and immune response
leukotrine modifier
block leukotrine receptors in airways to prevent airway edema and inflammation
mucolytics
loosen bronchial secretions
expectorants
aid in removal of mucus
sulfonylureas
stimulate release of insulin from pancrease, increase cell sensivity to insulin
buganide (metformin)
decrease hepatic production of glucose, decrease intestinal reabsorption of glucose, increase cell uptake of glucose
meglitinides
stimulate release of insulin from pancrease, decrease post pradinal glucose levels and A1C (not fasting glucose)
thiazolidinediones
increase cell sensitivity to insul, decrease hepatic production of glucose (lowering take 3-4mo)
incretin
increase insulin secretion, decrease glucagon secretion, delayed gastric emptying (increase in satiety)
alpha glucosidase inhibitor
block enzyme in SI that breakdown complex carbs
sodium-glucose cotransporter
inhibit sodium-glucose cotransporters in kidney, glucose lost in urine
cathartic laxitive
immediate relief
prophylaxis
when don’t want straining
psyllium
similar to dietary fiber, swell with water into firm gel
laxitive salts
draw water into lumen of LI, fecal mass softens, swells, wall streches to stimulate peristalsis
biscodyl
stimulate intestinal motility, increase amounts of water and electrolytes in intestinal lumen
docusate
additional water and lipids penetrate stool
diphenoxylate with atropine
acts on smooth muscle of SI to slow peristalsis
loperamide
first line drug for chronic diarrhea maintenance
bismuth subsalcylate
(pepto bismol) indigestion, heartburn, diarrhea
anticholinergic and antihistamine (n/v)
simple nausea ex/motion sickness
serotonin receptor antagonist
chemo n/v
dopamine antagonist
normal n/v
corticostroids (n/v)
chemo and post op n/v