"i have huge attention issues and i&#039;ve been taking vyvanse since it first came out about 5 years ago and it&#039;s the only medication that works for my add. my dosage is the max at 70mg and it works great. the only side effects i&#039;ve ever experienced is when i don&#039;t take it (usually on the weekend), you&#039;ll have an increase in appetite and you may become pretty lethargic. it&#039;s completely bearable though and it&#039;s nothing major at all. other than that, i honestly believe it&#039;s the best one out there. with my insurance and the discount card from the website, i&#039;m only paying $35 for my prescription. everyone is different but it&#039;s definitely worth a try. i&#039;ve recommended it several times. ask your doctor about it and see."