"my internist gave me methylphenidate (the active ingredient in ritalin) for an adhd disorder that i didn&#039;t even know i had. my god! my world finally made sense, and i was able to finally concentrate on a single task without having something pull me away for no earthly reason. and on top of that, the peripheral neuropathy in my feet, courtesy of a few early drugs in the hiv era, disappeared... totally. i didn&#039;t even need my methadone until i began to develop a tolerance for the methylphenidate. i&#039;m the only person my pharmacist has heard of who experienced this effect, but i am sure not complaining. this is truly a miracle drug for me, but since i went to a larger insurance company, with it&#039;s own doctors, it&#039;s been refused  it to me."