Teresa, carbidopa is available as Lodosyn, and can be prescribed by your mother's physician. It is often used for the nausea occasioned by Sinemet use. Best, Kathrynne "Teresa V. Bohuszewicz" wrote: > > Is carbidopa alone available in the U.S.? Who is the manufacturer? > > Teresa, Daughter of Mama (57/43/38) -- Kathrynne Holden, MS, RD Medical nutrition therapy for Parkinson's disease Author: "Eat well, stay well with Parkinson's disease" "Parkinson's disease: assessing and managing unique nutrition needs;" "Risk for malnutrition and bone fracture in Parkinson'sdisease," J Nutr Elderly. V18:3;1999. http://www.nutritionucanlivewith.com/