A gel of levodopa and carbidopa is infused through a surgically implanted tube into the small intestine, where levodopa is absorbed.
Is Duopa™ for Me? The Pros and Cons of the Duopa Pump
Davis Phinney - The benefits of duopa™ for people with Parkinson's
MJ Fox - Duopa
Parkinson's Foundation - Duopa
APDA - The many formulations of Carbidopa/Levodopa