Details of Drug Interaction

Details of Drug-Drug Interaction

 Drug General Information (ID: DDIRJAMS1K)
  Drug Name Amlodipine Drug Info Maraviroc Drug Info
  Drug Type Small molecule Small molecule
  Therapeutic Class Antihypertensive Agents Anti-Hiv Agents
  Structure

 Mechanism of Amlodipine-Maraviroc Interaction (Severity Level: Moderate)
     Additive hypotensive effects Click to Show/Hide Mechanism Graph
Could Not Find 2D Structure
      Drug Name Amlodipine Maraviroc
      Mechanism 1 Antihypertensive agent
Voltage-gated calcium channel  Blocker 		Antihypertensive agent
      Key Mechanism Factor 1
Factor Name Voltage-dependent L-type calcium channel Structure Sequence
Protein Family Calcium channel beta subunit family
Protein Function
Regulatory subunit of L-type calcium channels (PubMed:1309651, PubMed:8107964, PubMed:15615847). Regulates the activity of L-type calcium channels that contain CACNA1A as pore-forming subunit (By similarity). Regulates the activity of L-type calcium channels that contain CACNA1C as pore-forming subunit and increases the presence of the channel complex at the cell membrane (PubMed:15615847). Required for functional expression L-type calcium channels that contain CACNA1D as pore-forming subunit (PubMed:1309651). Regulates the activity of L-type calcium channels that contain CACNA1B as pore-forming subunit (PubMed:8107964).
    Click to Show/Hide
      Mechanism Description
  • Additive hypotensive effects by the combination of Amlodipine and Maraviroc 
      Mechanism 2 Antihypertensive agent
Voltage-gated calcium channel  Blocker 		Hypotensive effects
      Key Mechanism Factor 2
Factor Name Voltage-dependent L-type calcium channel Structure Sequence
Protein Family Calcium channel beta subunit family
Protein Function
Regulatory subunit of L-type calcium channels (PubMed:1309651, PubMed:8107964, PubMed:15615847). Regulates the activity of L-type calcium channels that contain CACNA1A as pore-forming subunit (By similarity). Regulates the activity of L-type calcium channels that contain CACNA1C as pore-forming subunit and increases the presence of the channel complex at the cell membrane (PubMed:15615847). Required for functional expression L-type calcium channels that contain CACNA1D as pore-forming subunit (PubMed:1309651). Regulates the activity of L-type calcium channels that contain CACNA1B as pore-forming subunit (PubMed:8107964).
    Click to Show/Hide
      Mechanism Description
  • Additive hypotensive effects by the combination of Amlodipine 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.