If you're struggling with ADHD or narcolepsy, Ritalin may be a helpful prescription medication to consider. It contains methylphenidate, which has been shown to increase dopamine levels in the brain to improve focus, attention, and impulse control. However, it's important to consult with a verified doctor before taking Ritalin and to only take it under their guidance. Ritalin is available in tablet forms like 10mg, and 20mg. It should be taken precisely as directed.