A cheap, highly addictive drug known as "cheese heroin" has killed 21 teenagers in the Dallas area over the past two years, and authorities say they are hoping they can stop the fad before it spreads across the nation.

"Cheese heroin" is a blend of so-called black tar Mexican heroin and crushed over-the-counter medications that contain the antihistamine diphenhydramine, found in products such as Tylenol PM, police say. The sedative effects of the heroin and the nighttime sleep aids make for a deadly brew.

"A double whammy -- you're getting two downers at once," says Dallas police detective Monty Moncibais. "If you take the body and you start slowing everything down, everything inside your body, eventually you're going to slow down the heart until it stops and, when it stops, you're dead." (Audio slide show: A father describes his teen son's death)

Steve Robertson, a special agent with the Drug Enforcement Administration in Washington, says authorities are closely monitoring the use of "cheese" in Dallas.

Trying to keep the drug from spreading to other cities, the DEA is working with Dallas officials to raise public awareness about the problem. Authorities also are trying to identify the traffickers, Robertson says.

"We are concerned about any drug trend that is new because we want to stop it," he says.

Why should a parent outside Dallas care about what's happening there?

Robertson says it's simple: The ease of communication via the Internet and cell phones allows a drug trend to spread rapidly across the country.

"A parent in New York should be very concerned about a drug trend in Dallas, a drug trend in Kansas City, a drug trend anywhere throughout the United States," he says.
Middle schoolers acknowledge 'cheese'

"Cheese" is not only dangerous. It's cheap. About $2 for a single hit and as little as $10 per gram. The drug can be snorted with a straw or through a ballpoint pen, authorities say. It causes drowsiness and lethargy, as well as euphoria, excessive thirst and disorientation. That is, if the user survives. (Interactive: What is "cheese"? )

Authorities aren't exactly sure how the drug got its name "cheese." It's most likely because the ground-up, tan substance looks like Parmesan cheese. The other theory is it's shorthand for the Spanish word "chiva," which is street slang for heroin.

By using the name "cheese," drug dealers are marketing the low-grade heroin to a younger crowd -- many of them middle schoolers -- unaware of its potential dangers, authorities say.

"These are street dealers, dope dealers," Moncibais recently warned students at Sam Tasby Middle School. "They give you a lethal dose. What do they care?"

Moncibais then asked how many students knew a "cheese" user. Just about everyone in the auditorium raised a hand. At one point, when he mentioned that the United States has the highest rate of drug users in the world, the middle s... [ Read More (0.3k in body) ]