GI Flashcards
Drug class for Loperamide
anti-diarrheal
MoA for Loperamide
inhibition of presynaptic cholinergic nerves in colonic submucosal & myenteric plexus slows transit time
Indications for Loperamide
mild-moderate diarrhea w/out obstructions, IBD, IBS
Drug class for Kaolin-Pectin
anti-diarrheal
MoA for Kaolin-Pectin
a clay (Kaolin) & a plant polysaccharide (Pectin) combination that absorbs fluids & bacterial toxins
Indications for Kaolin-Pectin
mild diarrhea
Drug class for Fiber
anti-diarrheal
MoA for Fiber
absorbs & binds fluids; provides stool bulk
Indications for Fiber
mild-moderate diarrhea, constipation
Drug class for Bismuth Subsalicylate
anti-diarrheal
MoA for Bismuth Subsalicylate
anti-secretory (salicylate) & anti-microbial (bismuth) action
Indications for Bismuth Subsalicylate
symptomatic tx of mild, nonspecific diarrhea, traveler’s diarrhea, as part of multi-drug regimen for H pylori
Drug class for Octreotide
anti-diarrheal
MoA for Octreotide
synthetic analogue of somatostatin w/ longer half-life; inhibits bowel secretion; dose-related impact on mobility; splanchnic arteriole constriction
Indications for Octreotide
diarrhea secondary to dysmotility, carcinoid, VIP-oma, pancreatic fistulas, vagotomy, dumping syndrome, short bowel syndrome, HIV diarrhea, GI bleeding
Drug class for Senokot
anti-diarrheal
MoA for Senokot
stimulates enterocytes, enteric neurons, GI smooth muscle inducing low-grade inflammation, fluid accumulation & stimulate intestinal motility
Indications for Senokot
constipation (without bowel obstruction)
Drug class for 5ASA
5ASA anti-inflammatory
MoA for 5ASA
local colon anti-inflammatory action & systemic prostaglandin inhibition
Indications for 5ASA
ulcerative colitis, proctosigmoiditis, proctitis
Drug class for Sulfasalazine
5ASA anti-inflammatory
MoA for Sulfasalazine
local colon anti-inflammatory action & systemic prostaglandin inhibition
Indications for Sulfasalazine
ulcerative colitis, RA, Crohn’s, psoriasis
Drug class for Azathioprine
purine analogues
MoA for Azathioprine
inhibits synthesis of DNA, RNA proteins
Indications for Azathioprine
steroid sparing for steroid dependent Crohn’s disease, ulcerative colitis, maintain remission in CD; fistulizing CD; kidney transplant, RA
Drug class for Methotrexate
pruine analogues
MoA for Methotrexate
decreases protein synthesis via inhibition of dihydrofolate reductase; inhibits interleukin-1; increase release of anti-inflammatory adenosine
Indications for Methotrexate
Crohn’s, ulcerative colitis, psoriasis, RA
Drug class for Infliximab
anti-TNF alfa compounds
Indications for Infliximab
acute & maintenance tx of moderate to severe Crohn’s & ulcerative colitis
Drug class for Ursodiol
gallstone dissolution agent
MoA for Ursodiol
reduces hepatic secretion of cholesterol
Indications for Ursodiol
gallstones, prevention of stones in rapid weight loss; primary biliary cirrhosis
Drug class for Lubiprostone
laxative calcium channel activation
MoA for Lubiprostone
activates calcium channels to increase bowel fluid secretion & motility
Indications of Lubiprostone
chronic constipation, IBS, opioid-induced constipation
Drug class for Linaclotide
laxative cGMP agonist
MoA for Linaclotide
agonizes guanylate cyclase-C on luminal surface of bowel epithelium, increases cGMP resulting in chloride & bicarbonate secretion into intestinal lumen
Indications for Linaclotide
IBS-C or chronic idiopathic constipation in adults
Drug class for MiraLax
osmotic laxative
MoA for MiraLax
causes water retention in stool & increases stool frequency
Indications for MiraLax
occasional constipation; short term use
Drug class for Lactulose
osmotic laxative
MoA for Lactulose
osmotic agent
Indications for Lactulose
px/tx portal systemic encephalopathy (PSE)
Drug class for MgCitrate
magnesium laxative
MoA for MgCitrate
osmotic retention of bowel fluid distending colon & increasing perstalsis
Indications for MgCitrate
occasional constipation; study prep
Drug class for Natalizumab
anti-integrin
MoA for Natalizumab
inhibits integrin on leukocyte surface & inhibit their adhesion to vascular endothelium & their migration into tissue
Indications for Natalizumab
subset of patients w/ moderate to severe Crohn’s who have failed other tx
Drug class for Ranitidine
H2R antagonist
MoA for Ranitidine
competitively inhibits H2 receptors of gastric parietal cells reduce basal & stimulated acid production
Indications for Ranitidine
PUD, GERD
Drug class for Omeprazole & Pantoprazole
PPI
MoA for Omeprazole & Pantoprazole
inhibits basal & stimulate parietal cell proton pump acid secretion
Indications for Omeprazole & Pantoprazole
PUD, GERD, prevention of NSAID ulcers; stress ulcer px in critically ill
Drug class for Sucralfate
mucosal surfactant
MoA for Sucralfate
in water or acidic solutions, forms pastes that form barriers by binding selectively to gastric mucosal ulcers & erosions; stimulates mucosal PG & bicarb secretion
Indications for Sucralfate
duodenal or gastric ulcers or erosions, stomatitis (off label)
Drug class for Dicyclomine
muscarinic antagonists
MoA for Dicyclomine
M receptor anticholinergic drug
Indications for Dicyclomine
IBS (cramps)
Drug class for AlOH
antacids
MoA for AlOH
neutralizes HCl in stomach to form Al(Cl)3 & H2O
Indications for AlOH
hyperacidity, hyperphosphatemia
Drug class for MgOH
antacids
MoA for MgOH
reacts w/ HCl acid to form MgCl; osmotic absorption of fluids distend colon & increases peristaltic activity
Indications for MgOH
dyspepsia, constipation
Drug class for Misoprostol
NSAID protectants
MoA for Misoprostol
synthetic prostaglandin E1 analog replaces protective PG inhibits by NSAID therapy
Indications for Misoprostol
NSAID-induced gastric ulcers; people at high risk for NSAID induced bleeding
Drug class for Liraglutide
GLP-1 receptor agonist weight loss drug
MoA for Liraglutide
increase glucose dependent insulin secretion; decrease inappropriate glucagon
Indications for Liraglutide
T2DM adjunct therapy; weight loss
Drug class for Orlistat
lipase inhibitor weight loss drug
MoA for Orlistat
reversible inhibitor of gastric & pancreatic lipase resolution in about 30% reduction in fat absorption
Indications for Orlistat
management of obesity with BMI over 30 or over 27 w/ other risk factors
Drug class for Lorcaserin
anorexiant weight loss drug
MoA for Lorcaserin
preferentially activates 5HT2c receptor initiating hormonal cascade resulting in decreased appetite
Indications for Lorcaserin
management of obesity with BMI over 30 or over 27 with other risk factors
Drug class for Pancrelipase
pancreatic enzymes
MoA for Pancrelipase
supplemental enzymes (lipase, amylase, protease)
Indications for Pancrelipase
chronic pancreatitis
Drug class for Meperidine
analgesic
MoA for Meperidine
binds to mu opioid receptors in CNS & inhibits ascending pain pathway
Indications for Meperidine
short-term use in peri-op & acute pancreatitis
Drug class for Imipenem-Cilastin
antibiotic
MoA for Imipenem-Cilastin
inhibits bacterial cell wall synthesis w/ lysis of bacterial cells
Indications for Imipenem-Cilastin
intra-abdominal infections, liver abscess, lower respiratory tract or GYN organ infections
Drug class for Ciprofloxacin
antibiotic
MoA for Ciprofloxacin
inhibits DNA gyrase
Indications for Ciprofloxacine
diverticulitis, traveler’s diarrhea, UTIs, anthrax, chlamydia, cholera, salmonella, shigella
Drug class for Metronidazole
antibiotic
MoA for Metronidazole
disrupts DNA structure inhibits protein synthesis producing cell death
Indications for Metronidazole
diverticulitis, C diff, vaginitis, giardiasis, trichomonas
Drug class for Vancomycin
antibiotic
MoA for Vancomycin
inhibits bacterial cell wall synthesis by blocking glycopeptide polymerization
Indications for Vancomycin
tx staph enterocolitis or abs-associated pseudomembranous colitis
Drug class for Interferon & Pegylated Interferon
interferon
MoA for Interferon & Pegylated Interferon
multiple anti-viral, immune modulating, and viral anti-proliferative effects
Indications for Interferon & Pegylated Interferon
HBV, HCV
Drug class for Ofloxacin
quinolone antibiotic
MoA for Ofloxacin
inhibits bacterial DNA replication by binding to DNA gyrase & topoisomerase
Indications for Ofloxacin
infections w/ susceptible GI, GU bacteria; traveler’s diarrhea (off label)
Drug class for Lamivudine
anti-viral antibiotic
MoA for Lamivudine
inhibits HBV DNA polymerase (& HIV reverse transcriptase); suppresses HBV replication
Indications for Lamivudine
HBV, HIV
Drug class for Ribavarin
anti-viral antibiotic
MoA for Ribavarin
inhibits replication of wide range of DNA & RNA viruses (influenza A & B, RSV, parainfluenza)
Indications for Ribavarin
HCV, HIV; goal is eradication of HCV
Drug class for Sofosbuvir
direct acting antiviral
MoA for Sofosbuvir
inhibits HCV RNA-dependent RNA polymerase preventing HCV replication
Indications for Sofosbuvir
acute or chronic HCV
Drug class for Ledipasvir/Sofosbuvir
direct acting antiviral
MoA for Ledipasvir/Sofosbuvir
inhibits HCV protein needed for replication & inhibits RNA-dependent polymerase preventing replication
Indications for Ledipasvir/Sofosbuvir
chronic HCV-1
Drug class for Hep A vaccine
vaccine
MoA for Hep A vaccine
stimulates HAV antibody response
Indications for Hep A vaccine
active HAV px; pre & post exposure; 2 doses
Drug class for Hep B vaccine
vaccine
MoA for Hep B vaccine
stimulates anti-HBV antibody formation
Indications for Hep B vaccine
active HBV px; 3 doses
Drug class for Rifaximin
misc antibiotic
MoA for Rifaximin
inhibits bacterial RNA-synthesis by binding to bacterial RNA-polymerase
Indications for Rifaximin
hepatic, encephalopathy, IBS-diarrhea, traveler’s diarrhea, C. diff (off label)
Drug class for Scopolamine
anticholinergic, anti-emetic, anti-vertigo (dermal patch)
MoA for Scopolamine
blocks activity of AcH at PSNS sites in smooth muscles, secretory glands, & CNS
Indications for Scopolamine
nausea, vertigo
Drug class for Promethazine
phenothiazines
MoA for Promethazine
blocks CNS dopamin receptors, competes for H1 receptors in brain & systemically
Indications for Promethazine
anti-emetic, motion sickness, sedative
Drug class for Haloperidol
butyrophenones; anti-psychotic
MoA for Haloperidol
blocks post-synaptic mesolimbic D1 & D2 receptors; also surpasses reticular activating system thereby reducing emesis
Indications for Haloperidol
anti-emetic; schizophrenia, Tourett’s, emergency sedation of agitated-aggressive patients (off label)
Drug class for Metoclopromide
benzamides
MoA for Metoclopromide
blocks D & 5HT receptors in CRTZ
Indications for Metoclopromide
anti-emetic, diabetic gastroparesis, GERD
Drug class for Dexamethasone
corticorsteroid
MoA for Dexamethasone
enhance effect of 5HT3 receptor
Indications for Dexamethasone
anti-emetic pre-chemo, immune modulation
Drug class for Dronabinol
cannaboids, dopamine antagonist
MoA for Dronabinol
unknown
Indications for Dronabinol
appetite stimulant, anti-emetic (chemo related), adjunct to surgical anesthesia
Drug class for Ondansetron
serotonin antagonist
MoA for Ondansetron
peripheral & CRTZ 5HT3 receptor blockade
Indications for Ondansetron
only for post-op, radiation & chemo-induced N/V
Drug class for Aprepitant
neurokinin-1 antagonist
MoA for Aprepitant
blocks central NK1 receptors
augments anti-emetic effect of 5HT3 receptor antagonism & corticosteroids
Indications for Aprepitant
prevention of chemo-induced N/V, post-op N/V