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On Tue, 24 Nov 1998, J. R. Bruman wrote: > paraphrased: Only 1% or so of levodopa taken by mouth actually > reaches the brain to be converted to dopamine and replenish the Hmm... Isn't it common nowadays that the pills also contain something that stops the levodopa from being destroyed outside of the brain? (e.g. Madopar, that contains Benserazid) Or does even less levodopa reach the brain when that substance isn't present in the medicine?? /John.