SILVER SPRING, Md. – A group of Silver Springs middle school students were “sipping on some Sizzurp” at school and several ended up in the hospital.

Numerous students at Francis Scott Key Middle School decided to drink a concoction of Jolly Ranchers, vodka, and NyQuil cough syrup popularized by numerous rap artists in recent years and it didn’t turn out so good.

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School officials took a half-dozen students for medical evaluations out of an “abundance of caution” this morning when more than a dozen were found drunk at school from the homemade “Purple Drank,” WUSA reports.

“We did evaluate 12 to 15 students and we did end up transporting six … we believe had ingested a mixture of alcohol and some other things,” Montgomery County Fire Rescue Service spokesman Pete Piringer told the news site.

“None of the conditions were life threatening,” he added, “We did have some sickness, illness, nausea, that type of thing.”

WJLA reports a total of 16 students initially reported to the nursing station complaining the mixture made them sick.

According to WUSA:

The key ingredient in “Purple Drank” is prescription strength cough syrup which can be mixed with sweet sodas, popsicles and candy for flavor.  The drink is also known as “sizzurp” and “lean”.

The drink was popularized by rappers Three 6 Mafia, who’s video “Sippin on some Sizzurp” has 5.8 million YouTube views.

Teens can be widely seen in social media videos promoting recipes for the drink.

Rapper Lil Wayne is also known for “sipping on some Sizzurp” and was hospitalized in 2013 over related health complications, the Los Angeles Times reported.

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Emergency room physician Dr. George Fallieras told the news site the drugs contained in the cough syrup depress the central nervous system, and respiration, and can ultimately cause a user to stop breathing.

“A lot of times these guys are nto just drinking the purple drink, they’re also drinking alcohol,” he said. “And potentially in combination with alcohol and other drugs – all of these together can be a lethal cocktail.”

The addictive drink contains codeine, the same kind of drug as heroin or morphine, and it’s extremely difficult to kick.

“There’s a misconception that codeine is a weaker formula of the same class of medicine (as heroin),” Fallieras told the Times. “But the amount of codeine these guys ingest with the syrup is massive … it’s just the same as someone being addicted to heroin, except they’re not using needles.”