Is rytary a combination of carbidopa and levodopa?

What is Rytary made of?

Yes. Rytary is a combination product that contains carbidopa and levodopa. [1]

How are carbidopa and levodopa used together in Rytary?

Carbidopa is included to help reduce levodopa side effects (especially nausea and vomiting) and improve how much levodopa reaches the brain. Levodopa is the main medicine that’s converted into dopamine in the brain to help treat Parkinson’s symptoms. [1]

Is Rytary different from “plain” carbidopa/levodopa tablets?

Rytary is still carbidopa + levodopa, but it is formulated for extended release (rather than the immediate-release tablets many people are familiar with). [1]

Sources
[1] https://www.drugpatentwatch.com/