Synthetic PGE1 analogue (Misoprostol)

Mechanism of Action

  1. Inhibition of gastric acid secretion by the parietal cells due to inhibition of histamine stimulated cAMP production.

  2. Cytoprotective effect on gastric and duodenal mucosa with increased mucus and bicarbonate secretion

  3. Maintains gastric mucosal blood flow and stimulates mucosal cellular regeneration.

Uses

  • Treatment of peptic ulcer
  • Prevention and treatment of mucosal damage induced by NSAID.RR  

Adverse Effects

  1. Diarrhea due to promoting secretion of fluid and electrolyte into the lumen of bowel and decreasing intestinal segmentary contractions that retard flow of luminal contents. RR

  2. Uterine contractions and abortion So, It is contraindicated during pregnancy