CHATTANOOGA, TN (WDEF) - The Centers for Disease Control is taking a close look at what it calls a "dangerous, potentially lethal substance" that's being sold at some convenience stores.
It's called "Crazy Clown."
One city in Georgia says 11 people have ended up in the hospital.
The message is---just because you can buy it legally over the counter doesn't mean it won't kill you.
MATTHEW HEDEGARD, GOT SICK AT A PARTY "I puked and then I woke up and I'm in a hospital."
Matthew Hedegard of Brunswick, Georgia was minutes away from death last week when he ingested the substance called Crazy Clown during a party.
Police Chief Matt Doering says a total of 11 people have now been hospitalized with the same symptoms.
POLICE CHIEF MATT DOERING, BRUNSWICK, GA. "The thing is...we don't know if what we have right now is legal or not."
Crazy Clown, Herbal Madness, bath salts, or roll-your-own tobacco...it's for sale over the counter and marked 'not for human consumption' but most of the buyers know what they can do with it.
BRAD STANDIFER "... someone's found out that you can grind it up and smoke it or inhale ...and get high from it but they also found out that it causes paralysis,cardiac problems, nausea, vomiting and things like that as well."
KAMNESH PATEL, BELL'S SMOKE SHOP "I get calls every day..like 10-15 calls a day..at least 10 people walk in a day and ask for it."
The CDC has just launched an investigation into Crazy Clown, but authorities know that there are thousands of chemicals out there that can be life-threatening if ingested.
You may wonder, how can these particular products be stopped?
BRAD STANDIFER , PHARAMIST,ACCESS PHARMACY "Most of the people that are coming into the E.R. from ingesting these products are in there..in intensive care for three or four days at a time. So this is not something to take lightly ..This is not something to experiment with..this is something kids need to stay away from. "
KAMNESH PATEL "It's also harming people, so its better not to support it..it's better for our whole society."
No local cases of Crazy Clown ingestion have been reported.
Officials say the synthetic drug may not yet be available in the tri-state area.