Drug General Information (ID: DDIE2978M5)
  Drug Name Didanosine Drug Info Captopril Drug Info
  Drug Type Small molecule Small molecule
  Therapeutic Class Anti-Hiv Agents Antihypertensive Agents
  Structure

 Mechanism of Didanosine-Captopril Interaction (Severity Level: Minor)
     Altered gastric pH Click to Show/Hide Mechanism Graph
Could Not Find 2D Structure
      Drug Name Didanosine Captopril
      Mechanism Gastric pH sensitive Gastric alkalinizer
      Key Mechanism Factor 1
Factor Name Gastric pH
Factor Description The normal pH range of gastric acid is between 1.5 and 3.5 and is highly acidic, consisting mainly of hydrochloric acid. Changes in the pH of the stomach can alter the absorption of drugs.
      Mechanism Description
  • Decreased absorption of Didanosine due to altered gastric pH caused by Captopril 

References
1 Mantyla R, Mannisto PT, Vuorela A, Sundberg S, Ottoila P "Impairment of captopril bioavailability by concomitant food and antacid intake." Int J Clin Pharmacol Ther Toxicol 22 (1984): 626-9. [PMID: 6389377]