Carbidopa is crystallization white villous; Almost odourless. The goods in the water or slightly soluble in methanol, insoluble in ethanol or chloroform; Easily dissolved in a dilute hydrochloric acid.
Carbidopa has strong peripheral dopa decarboxylase inhibitor. Not through the blood brain barrier, and share, levodopa only inhibition of the peripheral dopamine decarboxylase activity, reduce the production of dopamine weeks outside organization, reduce the peripheral adverse reactions, and then put into the central increase in the number of levodopa, increase the concentration of dopamine in the brain, enhance the curative effect of levodopa, so is one of the important auxiliary drug levodopa. Carbidopa use invalid, usually with carbidopa levodopa in compatibility or 1:4 scale made of compound preparations.
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