Response and effectiveness
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The highest effects can be noticed in around four hours. When Vyvanse is used to treat ADHD, differences in behavior have been observed two to twelve hours following a dose. When Vyvanse is used to treat BED, it may take up to 12 weeks before the number of binge days per week is reduced.
The response and effectiveness of Vyvanse can vary from person to person. Some individuals may see significant improvement in their ADHD or binge eating symptoms, while others may not experience a significant change. If you do not see improvement in your symptoms within a few weeks, or if you experience significant side effects, contact your doctor to discuss adjusting your dosage or switching to a different medication.