Methylin dosage 40Methylin dosage 40. If your doctor has recommended a dose different from the ones listed here, do not . . . . . . . In others, 10 to 15 mg daily . (Click Methylin Dosage for more detailed information about Methylin 10 mg tablets [and oral solution], including tips on when and how to effectively use this medication. . O. Ritalin, Methylin), chewable tablets (Methylin), and solution (Methylin) are usually taken 2 to 3 times a day, preferably 35-40 minutes before meals. . i. . .... more