How to counteract ritalin. . No, I've been taking both for years and have never had a problem. . In individuals with cancer, methylphenidate is commonly used to counteract opioid . Ritalin comes in 5, 10, and 20 mg water-soluble tablets intended for oral . " It's not just college kids who are turning to Ritalin. . . MPH is most commonly known by the Novartis trademark name Ritalin, which is an . . . Popularity: 1 • Tools: Recategorize. In my case, Tegretol did not counter the effects of t... more