Good to hear other info and experiences about Rytary. My husband only pays $10 for his co-pay because he gets funds through The Assistance Fund (TAF). Without it he couldn't be on the drug. There are other organization that provide assistance on expensive medications as well. Here is the link to TAF. If you scroll down, you'll see a link for Parkinson's patients.
https://tafcares.org/program-listing/

A lot of Movement Disorder Specialists were disappointed with the overall success of Rytary. It is Carbidopa/levadopa but is delivered by a proprietary extended release method. There are a lot of issues with dosing and response and a persons digestive health may play a part in all of it.

Google 'problems with rytary' and you can read all about it.

Plus Rytary was not covered by my insurance and was really expensive.

My husband takes a time released levadopa/cardopa medication called Rytary 48.75/195It made a big difference to plain Sinemet. He will also start using Inbrijia for bad "off" times (dispensed in a rescue inhaler). You may need your dosage or frequency changed.

I heard from my doc that Rytary is an awful med! She told me Carbidopa/Levodopamine can cause the hand and foot dyskinesia, so to try a little less of the med., but in 4 doses overall: 1 early morning, 1/2 early afternoon or about 11:30, 1 around 4:00PM and 1/2 at 8:30 PM

What is it like? Do you take it instead or with the Sinemet?