The object is to maintain the sustained blood level of levodopa and to provide a levodopa preparation which enables the sustained release of levodopa in the stomach and has a satisfactory intragastric floating time, has a size that is easy to be administered, and can be produced industrially. Specifically disclosed is a levodopa intragastric floating preparation which comprises: a drug release layer comprising levodopa; and an intragastric floating layer showing a satisfactory floating property in the stomach which relies on it high mechanical strength and showing a good disintegrating property in the intestinal tract.
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