Gastointestinal Drugs Flashcards
[Antacid]
Causes belching, metabolic alkalosis, fluid retention
sodium bicarbonate
[Antacid]
causes hypercalcemia, renal insufficiency, metabolic alkalosis (milk alkali syndrome)
Calcium carbonate
Antacids impairs absorption of these compounds thus it should not be given within 2 hours with this drug
- Fluoroquinolones
- Itraconazole
- Iron
- Tetracycline
[Maalox]
Between magnesium and aluminum, which causes diarrhea?
magnesium
Magtatae ka
[Maalox]
Between magnesium and aluminum, which causes constipation?
Aluminum
H2 receptor antagonist that can cause gynecomastia
Cimetidine
H2 receptor antagonist that is highly effective in suppressing nocturnal acid secretion
Cimetidine
can be used for pregnant patients
What is the drug of choice for PUD?
PPI
What is the MA of omeprazole?
inhibit HK ATPase
PPIs cause malabsorption of what vitamins and minerals?
- B12
- Ca
- Fe
- Zn
Intake of PPIs affect the bioavailability of these drugs
- Ketoconazole
- Ampicillin
- Ferrous salts
- Digoxin
[PPI]
Use with caution in hepatically -mpaired patients
- Pantoprazole
- Esomeprazole
- Omeprazole
[PPI]
Use with caution in renally-impaired patients
- Omeprazole
2. Pantoprazole
[PPI]
Among all PPIs which has the least drug-drug interaction
Pantoprazole
Prostaglandin 1 analogue that is useful in preventing NSAID-induced gastric mucosal injury
Misoprostol
Mucosal protective agent that both coats the ulcerated tissue + antimicrobial effect + sequesters enterotoxin
Bismuth salicylate
[mucosal protective agent]
Causes darkening of tongue, ataxia, headaches, confusion, seizures
bismuth salicylate
What are the components of Quadruple Therapy for eradication of H. pylori?
TOMB
Tetracyclin, Omeprazole, Metronidazole, Bismuth Salicylate
What are the components of Bismuth Therapy for eradication of H. pylori?
BMT
Bismuth salicylate
Metronidazole
Tetracycline
___ are prokinetic agent that block D2 receptors
- Metoclopramide
2. Domperidone
____ is a macrolide that stimulates motilin receptors
Erythromycin
What is the drug of choice for diabetic gastroparesis
Metoclopramide
A prokinetic drug that does not cross the BBB (less toxic)
Domperidone
Antibiotic given as bowel preparation prior to surgery since it binds to the motilin receptor
erythromycin
[laxatives]
bulk forming, indigestible, hydrophillic colloids that absorb water
tx: constipation
psyllium
Methylcellulose, polycarbophil, maltodextrin
[laxatives]
stool softener, permits water and lipids to penetrate
tx: constipation
Mineral oil, docusuate, glycerine suppository
[laxatives]
osmotic, soluble but not absorbable compounds resulting to increased stoll liquidity
lactulose
mainstay treatment for hepatic encephalopathy
lactulose
lactulose cause these electrolyte imbalance
- Hyperphosphatemia
- Hypernatremia
- Hypermagnesemia
- Hypocalcemia
- Hypokalemia
[laxatives]
stimulan/cathartic that directly stimulate enteric NS and colonic electrolyte
bisacodyl
Benign colonic disorder wherein a brown lipofuscin pigment accumulates due to intake of Senna
melanosis coli
[Antidiarrheal agent]
activates opioid receptors in the enteric NS, slows motility of GIT
Diphenoxylate, loperamide, difenoxin
This antidiarrheal agent can cause paralytic ileus if given to children less than 4 years of age
Diphenoxylate
Loperamide-induced paralytic ileus can be reversed by this drug
Bethanechol
What is the principal metabolite of diphenoxylate
difenoxin
Anti emetic drug that acts antagonizes the 5HT3 receptor
Ondansetron
[Drugs used in IBD]
An immunomodulator used only for mild controlled cases
Mesalamine, Sulfasalazine
Cite examples of TNF antagonist
- Adalinumab
- Certolizumab
- Infliximab