Muenter M D
Can J Neurol Sci. 1984 Feb;11(1 Suppl):195-9. doi: 10.1017/s0317167100046400.
Clinical and experimental evidence suggests that, in Parkinson's disease, the late-occurring fluctuations in response to levodopa therapy are due to progression of the disease rather than to the therapy. Therefore, treatment with carbidopa/levodopa should be started early, because postponement does not provide patients with added benefits but deprives them of the most satisfying period of the therapeutic response.