Unit 2: Ch 81, 83 Flashcards
What causes Peptic Ulcer Disease (PUD)?
Imbalance between mucosal and aggressive factors
What are the defensive factors of Peptic Ulcers?
Mucus
Bicarbonate
Blood flow
Prostaglandins
What are the aggressive factors of Peptic Ulcers?
H. Pylori
NSAIDs
Gastric acid
Smoking
What are the goals of PUD drug therapy?
alleviate symptoms
promote healing
prevent complications
prevent recurrence
What are the classes of Antiulcer drugs?
antibiotics
anti-secretory agents (H2 blockers & PPIs)
Mucosal protectants
Antacids
How do Anti-ulcer drugs work?
Eradicate H. Pylori
Reduce gastric acidity
Enhance mucosal defenses
What are the drugs that are for H. Pylori associated ulcers?
Antibiotics
Anti-secretory agents
Why should a minimum of 2 antibiotics be prescribed for H. Pylori treatment?
To reduce the risk of resistance developing
What are the nondrug therapies for PUD?
Changing eating patterns to 5-6 small meals a day
Avoid smoking, NSAIDs, and alcohol
What are Histamine-2 Receptor Antagonists (H2 blockers), and how do they work?
1st choice drugs for gastric and duodenal ulcer treatment
It promotes healing by suppressing secretion of gastric acid
What should be monitored for pts taking H2 blockers and PPIs?
Kidney damage
How does Famotidine work?
blocks histamine 2 receptors in the parietal cells
What are the therapeutic uses of Famotidine?
short-term treatment of gastric/duodenal ulcers
Treatment of GERD
OTC- to treat heartburn, indigestion, sour stomach
What are Proton Pump Inhibitors (PPIs)?
Most effective drugs for suppressing secretion of gastric acid
What are the therapeutic uses of PPIs?
Gastric/duodenal ulcers treatment
GERD treatment
How does Omeprazole work?
Inhibits gastric secretion
How does Sucralfate work and what is it used to treat?
Coates the inside of the stomach
Treats Acute ulcers
How do antacids work?
React with gastric acid to produce neutral salts or salts of low acidity
What are some antacid drugs?
Tums
Rolaids
What are the classes of Antiulcer drugs?
Reduction of gastric acids
Neutralization of gastric acid
Ulcer protective
Ulcer healing
Anti H. Pylori drugs
Which medication is used to promote gastric
ulcer healing by providing a protective barrier?
A. Cimetidine
B. Misoprostol
C. Omeprazole
D. Sucralfate
D.
What are antiemetics given for?
Suppress nausea and vomiting
What are the different receptors involved in emetic response?
Serotonin
dopamine
How does Ondansetron work?
blocks serotonin receptors