Buy Vyvanse 30mg a medicine that can be purchased online is available there. It is available in several forms, such as chewable tablets and formulations with fast-acting and slow-release properties. The effects of vyvanse often start to show two hours after administration and last for ten to twelve hours. It is usually advised to take chewable tablets or pills that include 30 mg and 60 mg of vyvanse. This medication is often used to address the side effects of Adderall, especially in people who are told to open the capsules instead of swallowing the pills.