What is the conversion ratio for adjusting extended-release (XR) mixed amphetamine salts (MAS) in pediatric attention deficit hyperactivity disorder (ADHD)?

Updated: Sep 09, 2021
  • Author: Maggie A Wilkes, MD; Chief Editor: Caroly Pataki, MD  more...
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For XR mixed amphetamine salts (MAS), convert using a ratio of 2:1 with IR MAS. The half-life of MAS widely varies among individuals. Some patients do better with a lower second dose and, thus, may benefit from an IR and XR morning combination.

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