The following is from WWE.com:
STAMFORD, Conn., October 10, 2008 – In accordance with its Wellness Program, WWE has suspended Nick Nemeth (Dolph Ziggler) for 30 days for his first violation of the company’s policy.
Dolph Ziggler has only appeared in backstage segments on RAW, meeting with various superstars. He will be allowed to return on or after November 10.