| http://www.w3.org/ns/prov#value | - Inside the brain, L-DOPA is converted by the DOPA decarboxylase enzyme into dopamine, but unfortunately DOPA decarboxylase in the rest of the body also converts L-DOPA. This means that much higher doses of L-DOPA are needed to ensure enough reaches the brain, and the formation of dopamine in tissues outside the brain causes side effects, such as irregular heartbeat and nausea.
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