Once you have an MMJ ID card, you can access an Arkansas medical marijuanas card online. Remember that the Arkansas Medical Marijuana Act only protects marijuana that is branded as coming from an Arkansas dispensary. Assume you require assistance picking up your medical marijuana. You could designate a caretaker (a friend, a relative, etc.) to make the purchase on your behalf in this situation. They must be Arkansas residents older than 21 and can pass a background check.