The tweet went on to say, "Cushing's suspension begins immediately".
The 30-year-old Cushing will be eligible to return to the roster on November 28, one day after Houston (0-1) faces the Baltimore Ravens.
Losing Cushing for the bulk of the 16-game regular season is a major blow to a Texans team that is coming off a 29-7 season-opening loss to the Jacksonville Jaguars.
The Pro Bowler was also suspended four games in 2010 for performance-enhancing drug use.
Houston Texans linebacker Brian Cushing, the former area high school standout from Bergen Catholic and college star at USC, has been suspended by the National Football League for 10 games, his team confirmed Wednesday. He's surpassed the 100 tackle mark three times in his career, with his rookie season of 2009 (133 combined tackles) being Cushing's most productive campaign as a professional. Benardrick McKinney is Houston's best linebacker and rookie Zach Cunningham can fill in for Cushing.