Order Now: https://bigpharmausa.com/adhd/adderall-12-5-mg/ Adderall 12.5mg can be ordered online for delivery in Arkansas, including options for overnight shipping. Adderall 12.5mg is a lower dose of the extended-release version of Adderall, which combines amphetamine and dextroamphetamine. It is used primarily to treat Attention Deficit Hyperactivity Disorder (ADHD) by providing a slow, sustained release of the medication over about 12 hours.