Inclusion Criteria:  Participant is aged between 18 - 60 years at time of diagnosis Participant is diagnosed with ADHD according to the DSM 5 criteria Participant started pharmacotherapy treatment with dex or lisdex but no real preference for the type of amphetamine exists according to practitioner Participant is able to provide written informed consent Participant is able and willing to comply with the study protocol  Exclusion Criteria:  No diagnosis for ADHD Currently other psychopharmacotherapy treatment than dex or lisdex Currently other psychopharmacotherapy parallel to dex or lisdex