I was able to find two newspaper articles on this lawsuit, both from July 31 2001, which indicate the cases were dismissed in California, New Jersey, and Florida:

Ritalin Class Actions: Fast Start, Big Stumble, Fulton County Daily Report, July 31, 2001 Tuesday, 1061 words

A VIABILITY DEFICIT IN LAWSUITS OVER RITALIN USE, The Recorder, July 31, 2001, Tuesday, NEWS; PG. 3, 1069 words