Drug General Information (ID: DDIMFGR0PY)
  Drug Name Triamterene Drug Info Maraviroc Drug Info
  Drug Type Small molecule Small molecule
  Therapeutic Class Diuretics Anti-Hiv Agents
  Structure

 Mechanism of Triamterene-Maraviroc Interaction (Severity Level: Moderate)
     Additive hypotensive effects Click to Show/Hide Mechanism Graph
Could Not Find 2D Structure
      Drug Name Triamterene Maraviroc
      Mechanism 1 Antihypertensive agent
Amiloride-sensitive sodium channel  Blocker
Antihypertensive agent
      Key Mechanism Factor 1
Factor Name Amiloride-sensitive sodium channel Structure Sequence
Protein Family Amiloride-sensitive sodium channel (TC 1.A.6) family
Protein Function
Sodium permeable non-voltage-sensitive ion channel inhibited by the diuretic amiloride. Mediates the electrodiffusion of the luminal sodium (and water, which follows osmotically) through the apical membrane of epithelial cells. Plays an essential role in electrolyte and blood pressure homeostasis, but also in airway surface liquid homeostasis, which is important for proper clearance of mucus. Controls the reabsorption of sodium in kidney, colon, lung and eccrine sweat glands. Also plays a role in taste perception.
    Click to Show/Hide
      Mechanism Description
  • Additive hypotensive effects by the combination of Triamterene and Maraviroc 
      Mechanism 2 Antihypertensive agent
Amiloride-sensitive sodium channel  Blocker
Hypotensive effects
      Key Mechanism Factor 2
Factor Name Amiloride-sensitive sodium channel Structure Sequence
Protein Family Amiloride-sensitive sodium channel (TC 1.A.6) family
Protein Function
Sodium permeable non-voltage-sensitive ion channel inhibited by the diuretic amiloride. Mediates the electrodiffusion of the luminal sodium (and water, which follows osmotically) through the apical membrane of epithelial cells. Plays an essential role in electrolyte and blood pressure homeostasis, but also in airway surface liquid homeostasis, which is important for proper clearance of mucus. Controls the reabsorption of sodium in kidney, colon, lung and eccrine sweat glands. Also plays a role in taste perception.
    Click to Show/Hide
      Mechanism Description
  • Additive hypotensive effects by the combination of Triamterene and Maraviroc 

Recommended Action
      Management Caution is advised when maraviroc is prescribed to patients on concomitant medications known to lower blood pressure. Close monitoring for development of hypotension is recommended. Ambulatory patients should be advised to avoid rising abruptly from a sitting or recumbent position and to notify their doctor if they experience dizziness, lightheadedness, syncope, orthostasis, or tachycardia.

References
1 Product Information. Selzentry (maraviroc). Pfizer U.S. Pharmaceuticals Group, New York, NY.