Comprehensive Pharm (Segars) Flashcards
Indications antacid salts
short term temporary relief of pain and other symptoms associated with PUD/GERD
Adverse reactions antacids
do not decrease acid secretion and can have rebound
instructions for taking antacids with other medications
take all antacids 1-2 hours before other meds or 2-4 hours after to avoid interactions
class Cimetidine
histamine 2 receptor anatgonist
interactions cimetidine
prototypical inhibitor of CYP450
class omeprazole
proton pump inhibitor
adverse reaction omeprazole
CDAD –> C. Diff associated diarrhea
interactions omeprazole
prototype CYP inhibitor
bismuth adverse reactions
causes constipation and black stools
treat H. pylori
- combination therapy
1) acid reducer
2) clarithromycin
3) amoxicillin or metronidazole
Treat H. pylori with PCN allergy (amoxicillin allergy)
1) acid reducer
2) clarithromycin
3) metronidazole
treat H. pylori with metronidazole resistance
1) acid reducer
2) clarithromycin
3) tetracycline
treat H. pylori with clarithromycin resistance
1) acid reducer
2) amoxicillin or tetracycline
Adverse reactions associated with Serotonin (5HT3) antagonists
- serotonin syndrome
- Torsades – QT prolongation
interactions Serotonin (5HT3) antagonists
anti arrhythmics
given for prophylaxis of post-op N/V and timing
aprepitant (given 3 hours prior)
suffix serotonin antagonists
-setron
class aprepitant
neurokinin antagonist
First line N/V in pregnancy
doxylamine with vitamin B6
class doxylamine
Histamine (H1) antagonist
adverse reactions histamine (H1) antagonists
ANTICHOLINERGIC EFFECTS
- drowsiness
- dry mouth
- constipation
- urinary retention
- blurred vision
- lower BP
dopamine (D2) antagonist adverse reactions
ANTICHOLINERGIC EFFECTS
- drowsiness
- dry mouth
- constipation
- urinary retention
- blurred vision
- lower BP
class metoclopramide
dopamine (D2) antagonist
indication metoclopramide
gastroparesis/intestinal dysmotility w/o obstruction
*works by stimulating ACh
scopalamine adverse effects
ANTICHOLINERGIC EFFECTS
- drowsiness
- dry mouth
- constipation
- urinary retention
- blurred vision
- lower BP
scopalamine class
M1 antagonist
cannabinoid agonists
- dronabinol
- nabilone
Use cannabinoid agonists
reserved for treatment resistance cancer induced N/V
how long is high emetic CINV regimen given
given for 3 days post chemo
how long is moderate emetic CINV regimen given
given for 2 days post chemo
how long is low emetic CINV regimen given
given day of chemo
drugs high emetic CINV regimen
1) NK1 antagonist
2) 5HT3 serotonin antagonist
3) corticosteroid
drugs moderate emetic CINV regimen
1) 5HT3 serotonin antagonist
2) corticosteroid
drugs low emetic CINV regimen
corticosteroid or 5HT3 antagonist or metoclopramide or prochlorperazine
minimal emetic regimen
0 drugs, but provide breakthrough treatment
contraindications 5-ASA agents (end in -zine)
patients allergic to ASA
IBD drugs utilized as first line treatment, but not officially indicated
- steroids
- immune modulators
- antibiotics
class tofacitinib
JAK inhibitor
interactions tofacitinib
don’t give with other immunosuppressants
class Golimumab
TNF-alpha inhibitors
Adverse reactions golimumab
TB infection (must have testing before taking)
When is Golimumab used?
Ulcerative colitis. Used after inadequate response to conventional immunosuppressants
class ustekinumab
IL-12/23 inhibitor
adverse reaction ustekinumab
TB infection (must have testing before taking)
Use of ustekinumab
Drug for crohn’s disease. For patients intolerant to TNF-alpha steroids and immune modulators
class Certolizumab
TNF-alpha inhibitor
adverse reaction Certolizumab
TB infection (must have testing before taking)
use Certolizumab
Crohn’s disease only. Used after inadequate response to conventional immunosuppressants
class Natalizumab
a4 integrin inhibitor
adverse reaction Natalizumab
infection (PML-progressive mulitfocal leukocephalopathy) associated with Johns cunningham virus (JCV)
site(s) inhibited by Natalizumab
both a4b1 and a4b7
use Natalizumab
Crohn’s disease only. Used after inadequate response to TNF-alpha therapy
class Vedolizumab
a4 integrin inhibitor
adverse reaction Vedolizumab
infection (PML-progressive mulitfocal leukocephalopathy) associated with Johns cunningham virus (JCV)
site(s) inhibited by Vedolizumab
a4b7
Use Vedolizumab
Ulcerative colitis and Crohn’s disease. Used after inadequate response to TNF-alpha therapy
Are steroids used for maintenance therapy?
NO, unless absolutely required
class diphenoxylate
opiod agonist
Note: diphenoxylate
synthetic opiod with atropine added to reduce abuse
class Eluxadoline
opiod agonist
indication eluxadoline
IBS-D
adverse reaction Eluxadoline
hepatic/pancreatic toxicity
- pancreatitis in patients w/o gallbladder
Alosetron class
5HT3 antagonist
indication Alosetron
chronic severe IBS-D
Adverse reaction Alosetron
ischemic colitis (no refills, must enroll in prescribing program)
class Crofelemer
Cl channel inhibitor
indication crofelemer
non-infectious diarrhea in HIV-AIDS
drugs used for abdominal spasms
antimuscarinic agents:
hyoscyamine, dicyclomine, clindium/chlordiazeproxide
class lubiprostone
C2 activator
indication lubiprostone
opioid induced constipation
class methylnaltrexone
opiod antagonist
class alvimopan
opiod antagonist
indication methynaltrexone
opioid induced constipation
indication alvimopan
opioid induced constipation, prevention of post op ileus following bowel resection surgery
adverse effects alvimopan
risk of MI, REMS program with max 15 doses given in hospital only
how long do bulk-forming agents take to work?
2-4 days
class docusate salts, mineral oil
stool softeners
MOA docusate salts, mineral oil
anionic surfactant to soften stool by increasing secretions, inhibiting H20 absorption in GI
class sodium picosulfate
stimulant
Use sodium picosulfate
used precolonoscopy
adverse effects stimulants
urine discoloration (Senna), melanosis coli
Contraindications stimulants
do not use with obstruction/impaction (ileus)
class lactulose
osmotic agent
use lactulose
constipation and used with severe liver disease to trap ammonia
PEG-3350 class
osmotic agent
Use PEG-3350
constipation, AND large doses used for bowel prep prior to scope (take effect 1-3 hours)