What some experts say about Duopa

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

https://parkinsonsdisease.net/clinical/duopa-pump-carbidopa-levodopa-pros-cons

Davis Phinney - The benefits of duopa™ for people with Parkinson's

https://davisphinneyfoundation.org/the-benefits-of-duopa-for-people-with-parkinsons/

MJ Fox - Duopa

https://www.michaeljfox.org/news/duopa-levodopacarbidopa

Parkinson's Foundation - Duopa

https://www.parkinson.org/Understanding-Parkinsons/Treatment/Surgical-Treatment-Options/Duopa

APDA - The many formulations of Carbidopa/Levodopa

https://www.apdaparkinson.org/article/carbidopa-levodopa-formulations-and-parkinsons-disease/