Seek immediate medical care (call 911) if a sudden foot tingling sensation is accompanied by numbness or weakness on one side of your body; a change in level of consciousness or alertness, such as passing out or unresponsiveness; or the worst headache of your life, as these can be signs of stroke.
Most people have to take three doses each day to cover all of the time in which they experience ADHD impairments. Adderall XR (extended release) capsules last from seven to 12 hours, depending on a personâs individual chemistry. Most patients require two doses a day to cover their waking day.
Adderall IR once consumed orally will kick in within 30 minutes to  an hour and will last around 4 hours, while the XR version lasting  around 8-10 hours. Snorting the adderall will highten the euphoria  felt, but will cut those times in half. .