i think of getting l-dopa into your brain like chinese checkers, you have to saturate all the body's supply of the active dopa Decarboxylase as quickly as possible so l-dopa can get to the bbb asap so i wonder how much of the equation is also balancing carbidopa?

http://en.wikipedia.org/wiki/Carbidopa

how quickly do cells produce more Decarboxylase as the enzyme becomes more inactivated in the presence of more l-dopa? does the system "overshoot" with wild fluctuations of carbidopa/levadopa?