Duration of metadate: Metadate is a form of methylphenidate as is ritalin. Its duration of action is approximately 8 hours. 30% of the beads in the capsule release quickly and 70% release in about 4 hours so its effect is not as smooth as other forms of methylphenidate, like Ritalin la or concerta. Each day you take metadate is a new day since it does not accumulate in the body..
Answered 11/16/2015
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