 [ Symptoms ] what happens if i accidently took two minocycline 100mg tablets at the same time supposed to take twice a day and accidentally took two at once [ Disease ] there are a few adhd medications classified as non stimulants – intuniv and strattera are two of these before you combining medications to treat a condition you should really talk to your healthcare professional as everyone is condition is different if a non stimulant medication was prescribed to you i would want to be sure the prescriber was aware of the fact that you are already taking vyvanse if one medication is not treating your symptoms adequately you should talk to your healthcare provider about your options