P2 PHARAMCOLOGY Flashcards
drugs that act by neutralising gastric acid secretion
Antacids
drugs that act by reducing gastric acid production
1-H2 receptor blocker
2-Prostaglandins analogues
3-PPIs
antacids that can cause metabolic alkalosis
NaHCO3
CaCO3
NaHCO3 & CaCO3 causes metabolic alkalosis due to
Their faster reaction
antacids that are commonly used
AI(OH)3
Mg(OH)2
side effect of magnesium in antacids
Diarrhea
side effect of aluminium in antacids
constipation
drug interactions for antacids
NOT to take any other drug within 2 hours
side effects of NaHCO3 & CaCO3
Metabolic alkalosis
Abdominal bloating sensation
Cimetidine , ranitidine
famotidine , nizatidine
are all examples of which drug classes
H2 receptor antagonists / blocker
ADR of cimetidine
Gynecomastia
Impotence
galactorrhea
CYP inhibition
mechanism of cimetidine causing Gynecomastia & galactorrhea
Interferes with prolactin & estradiol
DOC from H2 receptor antagonists
Ranitidine
Instructions for ranitidine
IV slow bolus
name drugs acting by inhibiting proton pumps
omeprazole , Esomeprazole
Lansoprazole
dexlansoprazole
pantoprazole
MOA of PPIs
Irreversible inhibition of proton pump
Indication for PPIs
1-GERD
2-PEPTIC ULCER
3-stress induced peptic ulcer
ADR of PPIs
1-Kidney disease ( nephritis)
2-osteoporosis
3- B12 deficiency
Drug interactions with PPIs
with clopidogrel
in triple therapy drugs are
1 PPI
2 antimicrobial
if the patient has resistance to Clarithromycin switch for
Quadruple therapy
duration of H.pylori regimen
14 days / 2 weeks
PPI should be continued for
4 to 6 weeks after stopping antimicrobials
MOA Prostaglandin analogous
enhance protection by inhibiting proton pump