http://digbig.com/4pkbj
"Addiction experts in the Dallas area are reporting that teens are being hospitalized after consuming a mix of black-tar heroin and over-the-counter cold medicine* popularly known as "cheese,". Students reportedly snort the mix of a small amount of heroin and drugs like Tylenol PM. The mix has been sold at area middle schools and high schools for about $2 a dose. "Cheese" contains about 8 percent heroin, Texas sources said." [Brief]