Drug General Information (ID: DDIIRZFBSK)
  Drug Name Nitroprusside Drug Info Levodopa Drug Info
  Drug Type Small molecule Small molecule
  Therapeutic Class Antihypertensive Agents Dopaminergic Antiparkinsonism Agents
  Structure

 Mechanism of Nitroprusside-Levodopa Interaction (Severity Level: Moderate)
     Additive hypotensive effects Click to Show/Hide Mechanism Graph
Could Not Find 2D Structure
      Drug Name Nitroprusside Levodopa
      Mechanism 1 Antihypertensive agent
Guanylate cyclase  Agonist
Antihypertensive agent
      Key Mechanism Factor 1
Factor Name Guanylate cyclase soluble Structure Sequence
Protein Family Adenylyl cyclase class-4/guanylyl cyclase family
Protein Function
There are two types of guanylate cyclases: soluble forms and membrane-associated receptor forms. Activated by nitric oxide in the presence of magnesium or manganese ions.
    Click to Show/Hide
      Mechanism Description
  • Additive hypotensive effects by the combination of Nitroprusside and Levodopa 
      Mechanism 2 Antihypertensive agent
Guanylate cyclase  Agonist
Hypotensive effects
      Key Mechanism Factor 2
Factor Name Guanylate cyclase soluble Structure Sequence
Protein Family Adenylyl cyclase class-4/guanylyl cyclase family
Protein Function
There are two types of guanylate cyclases: soluble forms and membrane-associated receptor forms. Activated by nitric oxide in the presence of magnesium or manganese ions.
    Click to Show/Hide
      Mechanism Description
  • Additive hypotensive effects by the combination of Nitroprusside and Levodopa 

Recommended Action
      Management Hemodynamic responses should be monitored during coadministration, especially during the first few weeks of therapy. Dose adjustments of the antihypertensive agent may be required. Patients should be advised to notify their physician if they experience dizziness or syncope.

References
1 Bailey DG, Dresser GK "Natural products and adverse drug interactions." Can Med Assoc J 170 (2004): 1531-2. [PMID: 15136542]
2 Ho PC, Ghose K, Saville D, Wanwimolruk S "Effect of grapefruit juice on pharmacokinetics and pharmacodynamics of verapamil enantiomers in healthy volunteers." Eur J Clin Pharmacol 56 (2000): 693-8. [PMID: 11214778]
3 Product Information. Stalevo 150 (carbidopa/entacapone/levodopa). Novartis Pharmaceuticals, East Hanover, NJ.