Reply To: What is the difference between Adderall and Adderall XR?

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Penny Williams
Keymaster

There’s Adderall IR and Adderall XR. IR is immediate release, also called short-acting, and XR is extended release or long acting. IR releases all the medication at once and last approximately 4 hours, so it’s taken 2+ times a day. XR is taken once a day and is designed to last longer.

The Adderall Effect on ADHD Symptoms: ADD Medication Overview

Penny
ADDitude Community Moderator, Parenting ADHD Coach & Author, Mom to teen w/ ADHD, LDs, and autism