Home ADHD Medication Are there two doses of 18mg Concerta I can take? Are there two doses of 18mg Concerta I can take? ADHD Adult Treatment Jun 28, 2022 0 Comments Tweet on Twitter Share on Facebook Pinterest The recommended starting dose of Concerta for patients not currently taking methylphenidate or stimulants other than methylphenidate is 18 mg once daily for children and adolescents and 18 or 36 mg once daily for adults. Continue reading… 18mg addiction treatment can doses drug and alcohol rehab recovery Recovery Partner Network substance abuse take two