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80 Cards in this Set

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psyllium
bulk-forming agent - laxitive
MOA: absorb water and form gels in lrg intestine, distends intestine, stimulates peristalsis
I: chronic constipation, also diarrhea
C: GI obstruction/perforation, gastric retention, undx abdom pain, vomit, appendicitis, toxic colitis, ileus or megacolon
avoid fiber agents in pts w swallowing difficulties, severely slow colon, diverticulitis
watch Na, K, aspartme
AE: bloating, flatulence, abdom cramps
interxns: affect absorption, separate admin by 1 hr
carboxymethycellulose
bulk-forming agent - laxitive
MOA: absorb water and form gels in lrg intestine, distends intestine, stimulates peristalsis
I: chronic constipation, also diarrhea
C: GI obstruction/perforation, gastric retention, undx abdom pain, vomit, appendicitis, toxic colitis, ileus or megacolon
avoid fiber agents in pts w swallowing difficulties, severely slow colon, diverticulitis
watch Na, K, aspartme
AE: bloating, flatulence, abdom cramps
interxns: affect absorption, separate admin by 1 hr
magnesium citrate
osmotic/saline/hyperosmotic laxitive
MOA: nonabsorbable/nondigestible salts/surgars hold water in intesting by osmotic foce, distends colon, stim peristalsis
I: constipation, colon prep for HI procedure, remove toxin
C: GI obstruction/perforation, gastric retention, undx abdom pain, v, appendicitis, toxic colitis, ileus, megacolon, kidney disease/renal fxn, caustion w diuretics, ACE-I, ARBs, NSAIDs
AE: electrolyte abnormalities
Interxn: Mb(OH)2 can dec absorption of some antibiotics, drugs given prior to colon prep may be flushed out before absorption
DRINK H2O
magnesium hydroxide
osmotic/saline/hyperosmotic laxitive
MOA: nonabsorbable/nondigestible salts/surgars hold water in intesting by osmotic foce, distends colon, stim peristalsis
I: constipation, colon prep for HI procedure, remove toxin
C: GI obstruction/perforation, gastric retention, undx abdom pain, v, appendicitis, toxic colitis, ileus, megacolon, kidney disease/renal fxn, caustion w diuretics, ACE-I, ARBs, NSAIDs
AE: electrolyte abnormalities
Interxn: Mb(OH)2 can dec absorption of some antibiotics, drugs given prior to colon prep may be flushed out before absorption
DRINK H2O
sodium phosphates
osmotic/saline/hyperosmotic laxitive
MOA: nonabsorbable/nondigestible salts/surgars hold water in intesting by osmotic foce, distends colon, stim peristalsis
I: constipation, colon prep for HI procedure, remove toxin
C: GI obstruction/perforation, gastric retention, undx abdom pain, v, appendicitis, toxic colitis, ileus, megacolon, kidney disease/renal fxn, caustion w diuretics, ACE-I, ARBs, NSAIDs
AE: electrolyte abnormalities
Interxn: Mb(OH)2 can dec absorption of some antibiotics, drugs given prior to colon prep may be flushed out before absorption
DRINK H2O
polyethlene glycol + electrolytes
osmotic/saline/hyperosmotic laxitive
MOA: nonabsorbable/nondigestible salts/surgars hold water in intesting by osmotic foce, distends colon, stim peristalsis
I: constipation, colon prep for HI procedure, remove toxin
C: GI obstruction/perforation, gastric retention, undx abdom pain, v, appendicitis, toxic colitis, ileus, megacolon, kidney disease/renal fxn, caustion w diuretics, ACE-I, ARBs, NSAIDs
AE: electrolyte abnormalities
Interxn: Mb(OH)2 can dec absorption of some antibiotics, drugs given prior to colon prep may be flushed out before absorption
DRINK H2O
lactulose
osmotic/saline/hyperosmotic laxitive
MOA: nonabsorbable/nondigestible salts/surgars hold water in intesting by osmotic foce, distends colon, stim peristalsis
I: constipation, colon prep for HI procedure, remove toxin
C: GI obstruction/perforation, gastric retention, undx abdom pain, v, appendicitis, toxic colitis, ileus, megacolon, kidney disease/renal fxn, caustion w diuretics, ACE-I, ARBs, NSAIDs
AE: electrolyte abnormalities
Interxn: Mb(OH)2 can dec absorption of some antibiotics, drugs given prior to colon prep may be flushed out before absorption
DRINK H2O
sorbitol
osmotic/saline/hyperosmotic laxitive
MOA: nonabsorbable/nondigestible salts/surgars hold water in intesting by osmotic foce, distends colon, stim peristalsis
I: constipation, colon prep for HI procedure, remove toxin
C: GI obstruction/perforation, gastric retention, undx abdom pain, v, appendicitis, toxic colitis, ileus, megacolon, kidney disease/renal fxn, caustion w diuretics, ACE-I, ARBs, NSAIDs
AE: electrolyte abnormalities
Interxn: Mb(OH)2 can dec absorption of some antibiotics, drugs given prior to colon prep may be flushed out before absorption
DRINK H2O
glycerin suppositions
osmotic/saline/hyperosmotic laxitive
MOA: nonabsorbable/nondigestible salts/surgars hold water in intesting by osmotic foce, distends colon, stim peristalsis
I: constipation, colon prep for HI procedure, remove toxin
C: GI obstruction/perforation, gastric retention, undx abdom pain, v, appendicitis, toxic colitis, ileus, megacolon, kidney disease/renal fxn, caustion w diuretics, ACE-I, ARBs, NSAIDs
AE: electrolyte abnormalities
Interxn: Mb(OH)2 can dec absorption of some antibiotics, drugs given prior to colon prep may be flushed out before absorption
DRINK H2O
docusate dioctyl sodium sulfosuccinate (Na+, Ca2+, K+)
surfactant laxitive
MOA: anionic detergents, emulsify w stool, softens, easier passage
I: stool softened
C: GI obstruction or perforation; gastric retention, undx abdom pain, v, appendicitis, toxic colitis, ileus, megacolon, fecal impaction/obstruction, acute surg abdomen, NOT w/ mineral oil
AE: mild cramping
Interxn: surfactant + mineral oil --> inc min oil abdorption and toxicity
NB: not useful once constipation occurred
mineral oil
lubricant laxitive
MOA: penetrates and lubricates feces for easier passage, prevents water reabsorption
I: fecal impaction, postMI/surg/partum to avoid strain
C: risk of aspiration, appendicitis, diverticulitis, ulc colitis, colostromy, ileostomy
AE: risk of asp, incontinence/anal leakage, w/ chr use: malabsorption of fat soluble mineral, chr inestinal hypomotility
Interxn: docusate, fat soluble vits, surfactants
anthraquinones: Cascara sagrada, Senna/sennosides, Cassia plant, Aloe, castor oil
irritant/stimulant/contact
MOA: contact irritant effects on enterocytes, enteric neurons, muscle, cause accumulation of water and electrolytes and stimulate intestinal motiltiy via several different pathways (PG; NO; Na, K, ATPase)
PK: all prodrugs
I: constipation, prep fo rdelivery, surgery, GI
CI: acute abdomen, bowel obstruction, appendicitis, gastroenteritis, not for chronic use
AE: melanosis coli, cathartic colon, cramps, severe diarrhea, depndency, castor oil, diphenylmethanes cna cause mucosal damage
I: antacids, milk
diphenylmethan derivs: bisacodyl
irritant/stimulant/contact
MOA: contact irritant effects on enterocytes, enteric neurons, muscle, cause accumulation of water and electrolytes and stimulate intestinal motiltiy via several different pathways (PG; NO; Na, K, ATPase)
PK: all prodrugs
I: constipation, prep fo rdelivery, surgery, GI
CI: acute abdomen, bowel obstruction, appendicitis, gastroenteritis, not for chronic use
AE: melanosis coli, cathartic colon, cramps, severe diarrhea, depndency, castor oil, diphenylmethanes cna cause mucosal damage
I: antacids, milk
methylnaltrexone
laxitive
subcut inj
MOA: periph mu opiod receptor antag
cannot X BBB, no CNS effect
PK: 85% elim, unchnged drug
I: opiod induced constipation, post op ileus, preg cat B
CI: known or suspected mech GI obstruction
AE: diarrhea, abdominal pain, n, d
Lubiprostone
oral laxitive
MOA: agonist at GI CLC-2 chloride ch, activates ch in apical membrane of intestine --> inc production of chloride rich intestinal fluids wo affecting serum Na or K levels
like a PG in structure
PK: very poor systemic absorption (plasma serum levels not detectable with therapeutic doses)
I: chr idiopathic constipation; IBS w constipation (f >=18), no restriction on length use
CI: known or suspected mech GI obstruction
AE: n, d, abdom pain
no evidence of tolerance, dependence or rebound effects (a prob w other laxatives)
psyllium
MAO: absorb water and form gels in lrg intestine. this slows passage through the intestine in the setting of d
I: chr d, d with incontinence, diarrhea w irribale bowel
AE: avoid if difficulty swallowing, slow GI, diverticulitis
Interxn: may absorb other drugs
caution: new ingredients of combination drugs/familiar trade names
carboxymethylcellulose
MAO: absorb water and form gels in lrg intestine. this slows passage through the intestine in the setting of d
I: chr d, d with incontinence, diarrhea w irribale bowel
AE: avoid if difficulty swallowing, slow GI, diverticulitis
Interxn: may absorb other drugs
caution: new ingredients of combination drugs/familiar trade names
methylcellulose
MAO: absorb water and form gels in lrg intestine. this slows passage through the intestine in the setting of d
I: chr d, d with incontinence, diarrhea w irribale bowel
AE: avoid if difficulty swallowing, slow GI, diverticulitis
Interxn: may absorb other drugs
caution: new ingredients of combination drugs/familiar trade names
kaolinpectin
MAO: absorb water and form gels in lrg intestine. this slows passage through the intestine in the setting of d
I: chr d, d with incontinence, diarrhea w irribale bowel
AE: avoid if difficulty swallowing, slow GI, diverticulitis
Interxn: may absorb other drugs
caution: new ingredients of combination drugs/familiar trade names
phenylpiperidine analgesic analog
MOA: stimulates opiate receptor in myenteric plexis, with the result of delayed intestinal transit and dec secretions
I: acute, nonspecific d
CI: not for infectious d, toxigenic E. coli, Salmonella, Shigella
AE: constipation, toxic megacolon
Interxn: other anticholinergic drugs - atropine, other drugs causing sedation, MAO inhibitions
loperamide
MOA: stimulates opiate receptor in myenteric plexis, with the result of delayed intestinal transit and dec secretions
I: acute, nonspecific d
CI: not for infectious d, toxigenic E. coli, Salmonella, Shigella
AE: constipation, toxic megacolon
Interxn: other anticholinergic drugs - atropine, other drugs causing sedation, MAO inhibitions
diphenoxylate + atropine
MOA: stimulates opiate receptor in myenteric plexis, with the result of delayed intestinal transit and dec secretions
I: acute, nonspecific d
CI: not for infectious d, toxigenic E. coli, Salmonella, Shigella
AE: constipation, toxic megacolon
Interxn: other anticholinergic drugs - atropine, other drugs causing sedation, MAO inhibitions
diphenoxin + atropine
MOA: stimulates opiate receptor in myenteric plexis, with the result of delayed intestinal transit and dec secretions
I: acute, nonspecific d
CI: not for infectious d, toxigenic E. coli, Salmonella, Shigella
AE: constipation, toxic megacolon
Interxn: other anticholinergic drugs - atropine, other drugs causing sedation, MAO inhibitions
bismuth subsalicylate
anti-diarrheal, mucoasal protective agent
MOA: may bind bacterial toxins, anti-secretory effects (NSAID effect)? also neutralizes gastric acids? r/t formation of glycoprotein-bismuth complex over ulcer crater preventing further ulceration and promoting healing
I: d
CI: hypersensitivity to ASA, not for kids w viral inf, chr use in renal failure pts
AE: temp black tongue and stools, hi doses can cause salicylte toxicity
Interxns: tetracyclines, salicylates
chew the tablets
cholestyramine
bile-acid binder, anti-diarrhetic
MOA: anion exchange resin; binds bile acids
I: secretory d, post-op
CI: pts sensitive to constipation
AE: bloating, constipation
Interxn: can bind other drugs (separate admin times) & interfere w some diagnostic tests
colestipol
bile-acid binder, anti-diarrhetic
MOA: anion exchange resin; binds bile acids
I: secretory d, post-op
CI: pts sensitive to constipation
AE: bloating, constipation
Interxn: can bind other drugs (separate admin times) & interfere w some diagnostic tests
octreotide (analog of somatostatin)
anti-secretory, anti-diarrhetic
MOA: somatostatin receptors, hyperpolarizes gut neurons, dec ACh, slows peristalsis
PK: longer 1/2 life, more potent than somatostatin at inhib gastric and pancreatic secretions
I:Zollinger-Ellison syndrome, AIDS diarrhea, refractory, endocrine tumor-related d
CI: hypersenstivity to drug or components
AE: GB stasis, inhib pancreatic secretions
Interxn: cyclosporine
other: must be given subcutaneously
sucralfate
mucosal protective agent
MOA: salt sucrose complexes w protein exudates at ulcer sites and acts as protective barrier, promotes mucous/bicarb lyr and the mucoid cap promoting epi regen
PK: min absorption
I: duodenal/gastric ulcers
CI: renal failure
Interxn: req acidic pH for activation
misoprostol
mucosal protective agent
MOA: PGE1 analogue, inhib gastric acid secretion and promotes mucosal protective properties
PK: 1st pass, shrt 1/2 life
I: prevent NSAID-induced gastric ulcers, induces labor and for incomplete and therapeutic abortions
CI: pregnancy! allergy to PG, IBD
AE: minor diarrhea, miscarriage, Preg Cat X
Interxn: does NOT affect P450 system, NO effect on aspiring or NSAID
antacids
MOA: neutralize acid
I: relief GI sx
CI: dec renal function
AE: minimal (constip, diarrhea)
Interxns: MANY!!!

self-tx
replaced by H2 receptor blockers and PPIs
components: hydroxides of Al (slow) and Mg (med); Na and Ca bicarb - fast
non-acid neutralizing components: simethicone, alginic acid
tablets neutralize less acid than liquid, but last longer
cimetidine
H2 receptors on parietal cell membrane
reveribly s w histamine for binding
PK: rapid absorb, little hep metab, excret kidney, cimitidine inhib P450 slow metab of other drugs (warfarin, phenytoin)
I: promotes gastric and duodenal ulcer healing, prevents ulcer recurrence, suppress of nocturnal acid secretion maximizes efficacy
AE: confusional state in elderly, gynecomastia
ranitidine
H2 receptors on parietal cell membrane
reveribly s w histamine for binding
PK: rapid absorb, little hep metab, excret kidney, cimitidine inhib P450 slow metab of other drugs (warfarin, phenytoin)
I: promotes gastric and duodenal ulcer healing, prevents ulcer recurrence, suppress of nocturnal acid secretion maximizes efficacy
AE: HA
famotidine
H2 receptors on parietal cell membrane
reveribly s w histamine for binding
PK: rapid absorb, little hep metab, excret kidney, cimitidine inhib P450 slow metab of other drugs (warfarin, phenytoin)
I: promotes gastric and duodenal ulcer healing, prevents ulcer recurrence, suppress of nocturnal acid secretion maximizes efficacy
AE: HA
nizatidine
H2 receptors on parietal cell membrane
reveribly s w histamine for binding
PK: rapid absorb, little hep metab, excret kidney, cimitidine inhib P450 slow metab of other drugs (warfarin, phenytoin)
I: promotes gastric and duodenal ulcer healing, prevents ulcer recurrence, suppress of nocturnal acid secretion maximizes efficacy
Proton Pump Inhibitor
Gastric antisecretory drugs
MOA: inactivates H/K/ATPase as the end common pathway of acid production
rapidly absorbed
highly protein bound
excreted by kidney
metab by inhib P450
prodrugs that req activation in an acid mileu
Clin: short term tx GU and DU
TOC: Zollinger-Ellison
used w antibiotics for H pylori
GERD
AE: inhib P450 lead dec benzos, warfarin, phenytoin, n, abdom pain, change bowel habits, elevated gastrin, lack of acid-feedback inhib
GERD
PPI more effective than H2
empirical trial of PPI is appropriate in absence of alarm sx (wt loss, dysphagia)
PUD
PPI promote more rapid healing than H2
IV PPI have role in acute bleed
carbechol
cholinergic agents
activation of muscarinic receptors on sm muscle cells
inc intracell Ca++
bethanecol
cholinergic agents
activation of muscarinic receptors on sm muscle cells
inc intracell Ca++
metoclopromide (domperidone)
dopamine receptor antagonists
dopaminergic receptors on motor neuron
activation inhib motility: DA effect, dec ACh from ENS
blockade (antagonism) has anti-DA effect --> protects GI motiltiy
metoclopromide (reglan)
serotonin receptor modulators
antagonist: 5HT3r on ECL cells and ENS
modulate inhib responses, antagonism promotes motiltiy
agonist: 5HT4r modulates excitatory resp, agonism shld enhance motiltiy
I: gastroparesis, anti-emesis, heartburn in GERD
PK: rapid absorb, 1/2 life = 2-4hr
AE: somnolence, nervouseness, dystonia/dyskinesia in elderly
tegeserod maleate (zelnorm)
serotonin receptor modulator
target: 5HT4 agonist, modulate excitatory resp, agonism promotes motility
for constipation predom IBS
erythromycin
motilin agonists
target: motilin receptors on sm muscle cells
stim enhances MMC
Botulinum toxin
inhib Ach release
intrapyloric injection
inhib pylorospasm, which has been described in diabetic gastroparesis
enhances solid, not liquid, emptying
improves postprandial fullness and bloating
pancreatin
extract of hog pancreas
dose with meals
titrated to effect
higher gastric pH enhances activity
I: fatty diarrhea, pancreatic insufficiency
pancrelipase
enriched with lipase
dose with meals
titrated to effect
higher gastric pH enhances activity
I: fatty diarrhea, pancreatic insufficiency
metronidazole
mild to moderate Crohn's disease
induce remission
antibiotic
ciprofloxacin
mild to moderate Crohn's disease
induce remission
antibiotic
5-Aminosalicylates (5-ASA)
MOA: inhib cyclooxygenase, lipoxygenase, B cells, inflam ctk, activates PPARy, inhib of lkt most imp
I: IBD, most efficacious in UC, CD maintencance, chemoprophylax (colon CA)
Safety: hypersensitivity, nephrotox, rev oligospermia
sulfasalazine: folate depletion anemia, oligospermia
(PO, rectal)
sulfasalzine
combines sulfapyridine with 5-ASA linked by azo bond
(azo bond is broken by bacteria in distal bowel)
used in mild/moderate ulcerative colitis (esp in maintaining remission)
dose: 3-4g/day
AE: dose related malaise, nausea, abdom pain, impaired folic acid absorption, rev dec in sperm count, severe skin rxns (Stevens-Johnson syndrome), bone marrow suppression
mesalamine
coated 5-ASA
lacks sulfa component
I: IBD
asacol: coating dissolves in alkaline milieu, allowing slow release through the bowel (mostly in terminal ileum and colon)
pentasa: semi-permeable membrane, drug released from jejunum thru colon
enema: allow local delivery for tx of distal colotos and rectal disease
olsalazine
I: IBD
2 5-ASA molecules linked by diazo bond
bond cleaved y bacterial flora
glucocorticoids
immunosuppressive agents for IBD - abdom pain, fever, leukocytosis, rectal bleed
results in remission in 90%
oral
azathioprine, 6-mercaptopurine (PO)
purine analog
cytotoxic agents
suppress lymphocyte prolif
second line tx for severe IBD
AZA --> 6MP --> 6TG--> dec prolif activated lymphocytes, apop
CD/UC: steroid w.drawl, maintenance
max clin benefit: 3-4mo
early rxns: fever, pancreatitis
AE: leukopenia, hepatotoxicity, infection (viral), lymphoma, non-melanoma skin CA
cyclosporine (IV --> PO)
I: IBD, UC - severe refractory dz
immunosuppressive agent
calcineurin inhibitor that suppresses proinflam factors
for severe UC not responding to steroids
lipophilic peptide: down reg IL-2 --> inhib Th cells
use lmtd by toxicity: renal insuff, HTN, neurotox, nephrotox, infection
infliximab (IV)
TNFa inhibitors
CD/UC: induction and maintenance
TNF is a product of mononuclear cells and thought to be a critical ctk in pathogen of inflamm
TNFa is known to be inc in mucosa of Crohn's pts
single infusion of infliximab 5mg/kg is effective in inducing remission in Crohn's lasting 2-6wks, leads to significant reduction in fistualizing disease
AE: n, low risk inf and malig
I: inducing and maintaining remission
adalimumab (SQ)
TNFa inhibitors
CD: induction/maintenance
TNF is a product of mononuclear cells and thought to be a critical ctk in pathogen of inflamm
TNFa is known to be inc in mucosa of Crohn's pts
single infusion of infliximab 5mg/kg is effective in inducing remission in Crohn's lasting 2-6wks, leads to significant reduction in fistualizing disease
AE: n, low risk inf and malig, CHF, infusion rxn, lymphoma, demyleination
I: inducing and maintaining remission
chenodiol
bile salt tx
used for oral tx to dissolve gallstones
lmted by diarrhea
ursodiol
bile salt tx
epimer of chenodiol
few toxicity
used in gallstone dissolution and primary biliary cirrhosis
Tx for Achalasia
meds to relax lower eso muscles
BoTox at GEJ to relax lower eso sphincter
dilation of eso
surgical myotomy
Tx for Esophageal spasm
long and short acting nitrate preps
CCBs
BoTox inj in cases where lower eso sphincter pressure is hi
Tx for Delayed gastric emptying
prokinetic agents
BoTox inj at pyloric sphincter
gastric pacemakers (esp in pts w neuropathic gastroparesis, is DM)
Tx for gastric outlet obstruction
correct obstruction problem (pyloric stenosis due to chronic scarring from PUD, compression from pancreatic cancer)
use of prokinetic agensts can worsen sx
Tx for gastroparesis
prokinetic agents
BoTox at pyloric sphincter
gastric pacemakers, most useful in neuropathic gastroparesis, DM
H. pylor tx
2 general therapeutic regimens:
PPI w 2 antibiotics (amoxicillin, clarithromycin)
PPI w 3 antibiotics
PPI or H2RA, bismuth, metronidazole, tetracylcine (BMT)
eradication rates gen 85-90%
metronidizole and clarithromycin resistance is inc common
amoxicillin resistance much less prevalent
H2RAs
acid suppression
unless dosed at hi dose with continue IV infusion, shldnot be considered 1st line for acid suppression
AE: tachyphylaxis occurs over days
budesonide
Tx: IBD
hi 1st pass metab
few systemic side effects
time dependent release in SB
efficacy:
CD - ileal/R colonic induction
ulcerative proctitis - enema formulation
induces remision in ileal and rt colonic CD
AE: < 10% of systemic side effects
glucocorticosteroid
IBD
binds GC receptors --> inhib inflamm mediators, WBC migration/funciton, dec ctk, lkt, PG
I: + induction, NOT maintenance of UC and CD
no benifit > 40-60mg prednison
IV, oral, rectal
5-10d
AE:
short-term: moon-face, acne, stria, hirsutism, infection, ecchymoses, petechia, HTN, osteonecrosis, other: insomnia, mood, truncal obsety, hyperglycemia, hypokalemia, leukocytosis
long-term: HTN, DM, inf, osteoporosis, cataracts/glaucoma, myopathy/muscle atrophy, psychosis, growth retard, atherosclerosis, adrenal insuff
methotrexate (IM, PO)
MOA: folate anolog, rever comp inhib DHFR; interfers w DNA syn, multi anti-inflamm effects
I: CD + induction and maintenance, UC?
Safety: pneumonitis, hepatotox, BM suppression, teratogen/abortifacient
natalizumab
IBD, anti-TNF Ab
MOA: inhib interxn bt WBCa4 integrins and adhesion molecules on vascular endo cells in GI tract --> dec WBC trafficking to sites of inflamm
efficacy: CD - induciton/maintenance
Safety: progresive multifocal leukoencephalopathy (PML)
Antibiotics for IBD (PO, IV)
Cipro (quinolone; g neg)
metronidazole (anaerobes)
rifaximin (min absorp)
CD: colonic, perianal (cipro/metronidazole)
ileocolonic (hi dose rifaxamin)
safety: C - tendon rupture, M - metallic taste, R - periph neuropathy
Cerolizumab (SQ)
anti-TNFa
CD: induciton/maintenance
AE: inf (opportunistic/TB), demyleination, SLE-like, CHF, infusion rxn, lymphoma
IFN-g
HBV
HCV
SA: flu-like sx, bone marrow suppression, irritability, thyroiditis, depression
lamivudine
nucleoside analogs - HBV
rapid inhib of HBV replication
seroconversion rates sim to IFN
safe in decompensated cirrhosis
viral mutaiton a prob w lamivudine
adefovir
nucleoside analogs - HBV
rapid inhib of HBV replication
seroconversion rates sim to IFN
safe in decompensated cirrhosis
viral mutaiton a prob w lamivudine
entecavir, tenofovir
nucleoside analogs - HBV
rapid inhib of HBV replication
seroconversion rates sim to IFN
safe in decompensated cirrhosis
viral mutaiton a prob w lamivudine
talbivudine
nucleoside analogs - HBV
rapid inhib of HBV replication
seroconversion rates sim to IFN
safe in decompensated cirrhosis
viral mutaiton a prob w lamivudine
peg IFN + ribavirin
HCV
6-12 mo
sustained viro resp
serum HCV RNA undetectable for 6mo after tx = 50%
IFN not for decompensated liver disease
ursodeoxycholic acid (ursodiol)
tx for primary biliary cirrhosis
replace endogenous hepatotoxic bile acids, provides symptomatic and biochem improvement
transplant-free
cholestyramine
tx for primary biliary cirrhosis
binds bile acids
reliees pruritis
no effect on natural hx of disease
AE: bile acid binding can worsen fat-souble vit malabsorption