DRUGS FOR GASTROINTESTINAL TRACT Flashcards
MOA: neutralizes gastric acid secretions and
raises the gastric pH of the stomach
ANTACIDS
DI: + digoxin / antibiotics = decrease absorption
ANTACIDS
reflux indigestion - esophageal irritation and
inflammation resulting from reflux of the stomach
contents into the esophagus : PUD, ulcer
prevention
ANTACIDS
SE: rebound hyperacidity (excessive amount of
acid in the stomach)
ANTACIDS
SE:
- GI disturbances (constipation / diarrhea)
ANTACIDS
SE: Electrolyte imbalances
ANTACIDS
SE: Hypermagnesemia (hypotension, N/V, ECG
changes)
ANTACIDS
SE: Hypophosphatemia (anorexia, malaise,
muscle weakness)
ANTACIDS
SE: Hypernatremia = water retention
ANTACIDS
SE: Systemic alkalosis
ANTACIDS
NI: Assess effectiveness of medication
ANTACIDS
NI: Avoid other medicines that lower gastric pH
or increases hyperacidity such as caffeine,
aspirin
ANTACIDS
NI: Take 1- 3 hours after eating don’t take other
medicines within 1-2 hours of taking
antacid; not at mealtime =slow gastric
emptying time = increased GI activity gastric
secretions
ANTACIDS
NI: Drink 2-4 oz of water after antacid
ANTACIDS
NI: Shake liquid preparations well and followed
with water
ANTACIDS
NI: Instruct to inquire about interactions with
any new medication & OTC
ANTACIDS
NI: Inform clients that they may experience
better relief from liquids than tablets
ANTACIDS
NI: Do not give milk products and vitamin D
with calcium carbonate =milk alkali
syndrome (alkalosis, hypercalcemia,
crystalluria, renal failure)
ANTACIDS
It is used to treat peptic ulcer disease
and gastric hyperacidity
DRUGS FOR
GASTROINTESTINAL TRACT
break or ulcerations in
the protective mucosal lining of the lower
esophagus, stomach, or duodenum
Peptic Ulcer Disease
MOA: block the H2 receptors of the parietal cells of the stomach, thus reducing gastric acid
secretion and concentration
HISTAMINE - 2 RECEPTOR ANTAGONISTS
treatment ulcer, prevention of stress
ulcer, hyperacidity, patients on prolonged NPO/
preoperative, GI bleed
HISTAMINE - 2 RECEPTOR ANTAGONISTS
DI: + digoxin / anticoagulants = increase their
action + antacid = decrease effectiveness
HISTAMINE - 2 RECEPTOR ANTAGONISTS
SE: HA, confusion, nausea, diarrhea,
abdominal pain, anemia, severe
bradycardia (IV administration), constipation
HISTAMINE - 2 RECEPTOR ANTAGONISTS
cimetidine (Tagamet)
HISTAMINE - 2 RECEPTOR ANTAGONISTS
Famotidine (Pepcid)
HISTAMINE - 2 RECEPTOR ANTAGONISTS
ranitidine (Zantac)
HISTAMINE - 2 RECEPTOR ANTAGONISTS
Nizatidine (Axid)
HISTAMINE - 2 RECEPTOR ANTAGONISTS
NI: Administer before meals
HISTAMINE - 2 RECEPTOR ANTAGONISTS
NI: Reduced doses of drug are needed by
older adults
HISTAMINE - 2 RECEPTOR ANTAGONISTS
NI: Administer IV drug in 20
–100mLsolution
HISTAMINE - 2 RECEPTOR ANTAGONISTS
NI: Do not administer at the same time with
antacids, give an hour before or 2 hours
after
HISTAMINE - 2 RECEPTOR ANTAGONISTS
NI: Avoid smoking because it hampers the
effectiveness of the drug
HISTAMINE - 2 RECEPTOR ANTAGONISTS
NI: Drug induced impotence and
gynecomastia – reversible
HISTAMINE - 2 RECEPTOR ANTAGONISTS
NI: Relaxation technique
HISTAMINE- 2 RECEPTOR ANTAGONISTS
NI: Eat foods rich in Vit B12 to prevent
deficiency as a result of drug therapy
HISTAMINE - 2 RECEPTOR ANTAGONISTS
AKA: anti-spasmodics
ANTICHOLINERGIC AGENTS
MOA: decreases acetylcholine by blocking the
cholinergic receptors.
ANTICHOLINERGIC AGENTS
MOA: It reduces gastric acid
secretion, decreases smooth muscle motility
and delays gastric emptying time
ANTICHOLINERGIC AGENTS
adjunct therapy for PUD. Spasms and
cramping associated with irritable bowel
syndrome
ANTICHOLINERGIC AGENTS
SE: tachycardia, urinary retention, dry mouth,
HA, constipation
ANTICHOLINERGIC AGENTS
NURSING RESPONSIBILITIES:
➔ Monitor bowel elimination
➔ Take before meals
➔ Give antacids 2 hours after
anticholinergic
ANTICHOLINERGIC AGENTS
MOA: suppresses the final step of gastric acid
production by inhibiting hydrogen - potassium
ATPase enzyme. Inhibit up to 90% than H2
blockers
PROTON PUMP INHIBITOR
short term treatment of erosive
esophagitis.
PROTON PUMP INHIBITOR
long term treatment
of duodenal ulcer.
OMEPRAZOLE
Treatment of H. pylori, active
benign gastric ulcers
PROTON PUMP INHIBITOR
INTERACTIONS: may increase concentration
o oral anticoagulants, diazepam, phenytoin if
with omeprazole
PROTON PUMP INHIBITOR
SE: headache, abdominal discomfort,
dizziness, flatulence, diarrhea
PROTON PUMP INHIBITOR
SE: headache, abdominal discomfort,
dizziness, flatulence, diarrhea
PROTON PUMP INHIBITOR
omeprazole (Losec)
PROTON PUMP INHIBITOR
pantoprazole (Pantoloc)
PROTON PUMP INHIBITOR
esomeprazole (Nexium)
PROTON PUMP INHIBITOR
lanzoprazole (Prevacid)
PROTON PUMP INHIBITOR
NI:
➔ Take before meals
➔ Regular medical check – up
PROTON PUMP INHIBITOR
AKA: Pepsin inhibitor / Mucosal Protective
Drug
CYROPROTECTIVE
MOA: forms a barrier / coating at the ulcer site
CYROPROTECTIVE
sucralfate (Iselpin)
CYROPROTECTIVE
rebamipide (Mucosta)
CYROPROTECTIVE
SE: constipation ( not systemically absorbed)
CYROPROTECTIVE
DI: may impede absorption of warfarin,
phenytoin, theophylline
CYROPROTECTIVE
NURSING INTERVENTIONS:
➔ Take before meals; as prescribed (4-8
weeks)
➔ Take one hour apart from antacid
➔ Digoxin: administer sucralfate at least 2
hours apart
CYROPROTECTIVE
MOA: decrease vagal activity. Inhibits gastric
acid secretion & protects the mucosa.
Promotes secretion of sodium bicarbonate and
cytoprotection mucus
PROSTAGLANDIN ANALOGUE
USE: PUD
PROSTAGLANDIN ANALOGUE
SE: diarrhea, abdominal pain
PROSTAGLANDIN ANALOGUE