[Pharm] Antacids and Anti-Ulcer Drugs (Segars) Flashcards
Antacids are used only for?
Short-term and temporary relief of MILD pain and symptoms associated with PUD/GERD
What are the two categories of antacids?
Low-systemic agents
High-systemic agents
What are the low-systemic agents?
Aluminum salts
Calcium salts
Magnesium salts
What is the high-systemic agent?
Sodium salts
What is the major supplemental agent?
Simethicone
Where within the GI tract to antacids act?
Within the gastric luman
What is the mechanism of antacids?
Combine chemically with hydrogen ions
T/F
Antacids reduce acid secretion and production
FALSE!!!!
Antacids DON’T reduce secretion or production
What are the two rapid onset, long DOA antacid compounds?
Calcium
Magnesium
What is the mechanism of simethicone?
A surfactant that decreases surface tension
Aids in expulsion of gas
*It decreases my tension to play SIMs (simethicone)
What are the side effects of ALUMINUM?
Constipation
Hypophosphatemia
What are the side effects of MAGNESIUM?
Diarrhea
Hypermagnesemia
What are the side effects of CALCIUM?
Constipation
Hypercalcemia
Hypophosphatemia
Calcium-based kidney stones
What are the side effects of sodium?
Gas/Flatulence
Hypernatremia
Metabolic alkalosis
What are the factors you should consider when choosing the appropriate antacid?
- Dosage form & palatable
- Presence of renal or heart disease
- Electrolyte status
- Diseases associated w/ diarrhea and constipation
What is the big advice for drug interactions with antacids?
AVOID antacid + medication co-administration at the same time
Take all antacids 1-2 hours BEFORE other medications OR 2-4 hours AFTER other medications
What are the 5 classes of anti-ulcer agents?
H2 Receptor Antagonists
Proton pump inhibitors
Surface Acting Agents
PGE1 Analogs
Bismuth Compounds
What is the suffix associated with H2 receptor antagonists?
-tidine