Lisdexamfetamine is a prescription medication used to treat attention deficit hyperactivity disorder (ADHD) and binge eating disorder. However, there are several synonyms for this word that are worth mentioning. Some of these include Vyvanse, Elvanse, Tyvense, and Venvanse. All of these terms refer to the same drug with the chemical name lisdexamfetamine. It is sold under different brand names in different countries. Regardless of the name, it is a potent stimulant that can help improve focus, decrease impulsivity, and reduce hyperactivity in those with ADHD. If you or a loved one has been prescribed lisdexamfetamine, it is essential to follow your healthcare provider's instructions carefully to ensure its safe and effective use.