In between-period vaginal bleeding is indeed a side effect of Adderall. It is common for Adderall users to experience vaginal bleeding between periods, especially if they are between the ages of 20 and 29 and have been taking the medication for six to twelve months. What is Adderall? The medication Adderall is used to treat narcolepsy and attention deficit hyperactivity disorder (ADHD). It combines the effects of amphetamine and dextroamphetamine, two central nervous system stimulants…