Ritalin 15 mg, give Ritalin LA 30 mg P. If previous dosage was 20 mg b. of Adderall was worthwhile for me - I think I would have had similar experiences with 15 or 30 mg. . SR Tablets: Ritalin-SR . Some people may need 40 to 60 mg daily, others only 10 to 15 mg. O. I did not feel that the 60 mg. I'm currently on ritalin LA 30 mg. . . . . Rubifen: 5 mg, 10 mg, and 20 mg tablets; Daytrana: 10 mg, 15 mg, 20 mg, and 30 mg patches . . . . . . . once daily. What is Ritalin/Ritalin-SR/Ritalin LA? Ret... more