Ranitidine (H2 antagonist) Flashcards
1
Q
What’s the mechanism of action of ranitidine?
A
H2 receptor antagonist
It blocks the histamine H2 receptor, decreasing gastric acid secretion from parietal cells
2
Q
What condition(s) is ranitidine indicated in?
A
GORD, peptic ulcers
3
Q
Name some contraindications of ranitidine
A
- PMHx of acute porphyria
- ongoing GI bleeding
- kidney failure
- nicotine
4
Q
What are some side effects of ranitidine?
A
Diarrhoea, constipation, dizziness/headache/fatigue, rash
