Drug General Information (ID: DDIPTZCDEN)
  Drug Name Digoxin Drug Info Trandolapril Drug Info
  Drug Type Small molecule Small molecule
  Therapeutic Class Antiarrhythmic Agents Antihypertensive Agents
  Structure

 Mechanism of Digoxin-Trandolapril Interaction (Severity Level: Moderate)
     Competitive inhibition of renal tubular secretion Click to Show/Hide Mechanism Graph
Could Not Find 2D Structure
      Drug Name Digoxin Trandolapril
      Mechanism Digoxin Reduce tubular secretion of digoxin
      Key Mechanism Factor 1
Factor Name Renal tubular secretion
Factor Description Renal tubular secretion allows selective transfer of substances from the blood around the capillaries into the renal tubules via filtrate. Drug excretion may be reduced when two drugs compete for renal tubular secretion.
      Mechanism Description
  • Decreased elimination of Digoxin caused by Trandolapril mediated competitive inhibition of renal tubular secretion

Recommended Action
      Management While this combination has demonstrated benefits in some CHF patients, their clinical response and digoxin levels should be monitored. Patients should be advised to notify their physician if they experience nausea, anorexia, visual disturbances, slow pulse, or irregular heartbeats.

References
1 Cleland JG, Dargie HJ, Pettigrew A, Gillen G, Robertson JI "The effects of captopril on serum digoxin and urinary urea and digoxin clearances in patients with congestive heart failure." Am Heart J 112 (1986): 130-5. [PMID: 3524169]
2 Douste-Blazy P, Blanc M, Montastruc JL, et al "Is there any interaction between digoxin and enalapril?" Br J Clin Pharmacol 22 (1986): 752-3. [PMID: 3032228]
3 Rodin SM, Johnson BF "Pharmacokinetic interactions with digoxin." Clin Pharmacokinet 15 (1988): 227-44. [PMID: 3056649]