Patients should consult their physician before taking any additional prescriptions, over-the-counter medications, nutritional supplements or herbal medications.

Certain medications may interfere with dopamine precursors such as levodopa (also known as L-Dopa). These include:

• Alcohol
  
  
• Antacids
  
  
• Antidepressants
  
  
• Antiseizure drugs
  
  
• Antihypertensives
  
  
• Dopamine blockers (e.g., antipsychotics, tranquilizers)
  
  
• MAO inhibitors
  
  
• Certain illegal drugs (e.g., cocaine)
  
  
• Tranquilizers
  
  
• Vitamin preparations with pyridoxine (vitamin B6) and other vitamins