GI - Medications Flashcards
antacids
- any substance, usually a base, that counteracts or neutralizes stomach acid
- rapid onset/short duration
- for gastric, esophagus, duodenum: indigestion, upset/sour stomach, heartburn, gas, gerd
Do antacids raise pH?
yes
Do antacids cause imbalances in electrolytes?
yes; low and high
what do gastric acids do to nerves?
cause pain
what are the two classes of antacids?
- chemical neutralization gastric acid (sodium bicarbonate)
- absorb acid (calcium and magnesium)
antacid - chemical neutralization gastric acid
- sodium bicarbonate
- can cause acid rebound (acid returns in greater amounts)
- baking soda and water = make on own
why do you have to consider hypertensions when taking antacids?
- sodium bicarbonate
- retain more sodium
antacid - absorb acid
- calcium and magnesium
- less acid rebound effect
- prone to drug interactions
what happens if you give synthroid and antacid at the same time?
will displace the hormone, give at least two hours apart
what do aluminum ions do?
inhibit smooth muscle cell contraction and delays gastric emptying
tums
calcium carbonate
Alka-Seltzer
sodium bicarbonate
MOM
magnesium hydroxide
Amphojel
aluminum hydroxide
Maalox, Mylanta
aluminum and magnesium
antacid
- TUMS
- Alka-Seltzer
- MOM
- Amphojel
- Maalox & Mylanta
- Hydroxide
H2 Receptor Antagonist
- Blocks the action of histamine on parietal cells (H2) in the stomach, decreasing acid production by these cells
- Histamine stimulates the secretion of stomach acid