Anti-inflammatory Drugs Flashcards
Imodium: class
Antidiarrheal
Imodium: MOA
Inhibits preganglion cholinergic nerves in colon submucosa and myenteric plexus, slowing transit time
Imodium: indication
Mild to moderate diarrhea without obstruction
Does Imodium cross the blood brain barrier?
Nope
Kaopectolin: class
Antidiarrheal
Kaopectolin: MOA
Clay and pectin combo absorb fluids and bacterial toxins
Kaopectolin: indication
Mild diarrhea
Kaopectolin: Dx-Dx
Can absorb meds and decrease their concentration
Fiber: class
Antidiarrheal
Fiber: MOA
Absorbs and binds fluids, provides stool bulk
Fiber: indication
mild to moderate diarrhea, constipation
Fiber: Dx-Dx
Can bind to meds/vitamins/minerals
Bismuth subsalicylate: class
Antidiarrheal
Bismuth subsalicylate: MOA
Salicylate = antisecretory Bismuth = antimicrobial
Bismuth subsalicylate: indication
Mild, unspecific diarrhea, traveler’s diarrhea, part of the H. pylori regimen
Bismuth subsalicylate: side effect
Discolored stool
Bismuth subsalicylate: contraindications
Pregnancy
Octreotide: class
Antidiarrheal
Octreotide: MOA
Inhibits bowel secretions; dose-related impact on motility; splanchnic arteriole contraction
Octreotide: indication
Diarrhea secondary to bowel dysmotility, carcinoid, VIP-oma, vagotomy, dumping syndrome, short bowel syndrome, HIV diarrhea; GI bleeds
Octreotide: side effect
Steatorhea, gallstones (>50% in long term use)
Octreotide: contraindications
Bowel obstruction
Octreotide: Dx-Dx
Insulin, PO hypoglycemics, BBs, CBs
Senokot: class
Antidiarrheal
Senokot: MOA
Induces mild inflamation, fluid retention, stimulated bowel motility
Senokot: indication
Constipation without obstruction
(then why is it an antidiarrheal???)
Mesalamine: class
5ASA anti-inflammatory
Mesalamine: MOA
Local colon anti-inflammatory
Systemic prostaglandin inhibition
Mesalamine: indication
Ulcerative colitis, proctosigmoiditis
Mesalamine: Dx-Dx
Inhibits folate absorption, so you need to supplement it.
Sulfasalazine: class
5ASA anti-inflammatory
Sulfasalazine: MOA
Local colon anti-inflammation
Systemic prostaglandin inhibition
Sulfasalazine: indication
Ulcerative colitis, Crohn’s disease
Sulfasalazine: contraindication
G6PD deficiency
Sulfasalazine: Dx-Dx
Inhibits folate absorption
What is so neat baout the pharmycokinetics of sulfasalazine?
I think it’s neat…but I’m a nerd
Colonic bacteria cleave away the sulapyridine and release the active 5ASA to do it’s thing in the colon.
(I think that’s clever!)
Azathioprine: class
Purine analogue
Azathiprine: MOA
Inhibits DNA/RNA/Protein synthesis
Azathioprine: indication
Steroid sparing in steroid dependent CD, UC
Helps maintain remission
Azathioprine: Dx-Dx
Use with 5ASA increases the risk of myelosuppression
MTX:
How I’ve missed thee
MTX: class
Purine analogue
MTX: MOA
Inhibits protein synthesis and IL-1; increases release of adenosine
MTX: indication
CD, UC
What is important to know about MTX dosing?
Use lower doses for CD and for fewer side effects
Remicade: class
TNFa compound
Remicade: MOA
Decreased T-helper 1 cell activation & proliferation;
Decrease IL-12 and leukocyte migration;
Increase apoptosis in activated cells
Remicade: indication
Acute and maintenance Tx for severe CD, UC
Remicade: side effects
TB activation; HBV reactivation
Remicade: CD statistics
60% see sxs improvement; 30% see remission
Remicade: UC statistics
50-70% see sxs improvement; 33% see remission
Actigall: class
Gallstone dissolution agent
Actigall: MOA
Reduces hepatic secretion of cholesterol
Actigall: indication
Gallstones
Gallstone prevention in rapid wt loss
Primary biliary cirrhosis
Actigall: side effects
H/A, diarrhea
Actigall: what’s the down side?
Dissolution takes months and the risk of recurrence is ~50%
Amitiza: class
Ca++ channel activator laxative
Amitiza: MOA
Activated Ca++ channels increase bowel secretions and motility
Amitiza: indication
Chronic idiopathic constipation
IBS constipation
Opioid constipation
Amitiza: side effect
Peripheral edema
***As a side note, you may remember that CCBs also cause peripheral edema. This just proves that pharmacology is black magic.
How do you take Amitiza?
With food
Linzess: class
cGMP agonist laxative
Linzess: MOA
Agonizes cGMP on bowel luminal surface, resulting in increased bowel secretions and motility
Linzess: indication
IBS-C in adults who did not respond to PEG; chronic idiopathic constipation in adults
Linzess: contraindication
What has to go along with an Rx for Linzess?
FDA med guide
How do you take Linzess?
30 minutes before meals on an empty stomach
MiraLax: class
Osmotic laxative
MiraLax: moa
Causes H2O secretion in stool and increases stool frequenct
MiraLax: indication
Occasional constipation
short term use only
MiraLax: side effect
Electrolyte imbalance
MiraLax: contraindication
Bowel obstruction
Lactulose: class
Osmotic laxative
Lactulose: MOA
Synthetic saccharide increases osmosis;
enhances secretion on NH3 into gut - then converts it to NH4 which cannot cross back
Lactulose: indication
Px and Tx of PSE
What dietary consideration need to be made on Lactulose?
Need a diet low in galactose
MgCitrate: class
Mg++ laxative
MgCitrate: MOA
Osmotic retention of bowel fluid distends colon and increases peristalsis
MgCitrate: indication
Occasional constipation; study prep
MgCitrate: contrindication
Low salt diet
Your Pt is going to call you and complain if you don’t tel them this…
Chilling it makes it more palatable
Natalizumab: class
Anti-integrin
Natalizumab: MOA
Inhibits intergrins on leukocyte surfaces;
Inhibits their adhesion to vascular endothelium and migration into tissues
Natalizumab: indication
Severe, refractory CD