According to FDA prescribing information:
"In healthy adults, oral administration of Rytary after a high-fat, high-calorie meal reduced Cmax approximately 21% and increased AUCinf approximately 13% for levodopa compared to administration in the fasted state. There may be a delay by 2 hours in the absorption of levodopa when Rytary is taken with a high-fat, high-calorie meal. In addition, absorption of levodopa may be decreased by a high protein meal."
These are pharmacokinetic measures
CMAX is the maximum levodopa plasma concentration.
AUCinf is the area under the curve to infinity.
Ref: drugs.com/pro/rytary.html
I don't think that these results are specific to Rytary alone, They are likely, I think, to apply to C/L too.
I knew about the CMAX effect and the protein effect, but the AUC effect is new to me. Does anyone make use of this effect to get a bit more out of their levodopa?
John