Four teenagers have been hospitalised after consuming the drink, called Green Hornet, in recent weeks.They suffered from seizures, excessive heart rates, severe body rashes and high blood pressure, according to reports, but FDA is investigating whether the reactions were caused by Green Hornet alone or in combination with other substances.
The product, sold on the Internet and in stores, contains undeclared active ingredients, such as diphenhydramine and dextromethorphan, found in over-the-counter drugs for coughs and colds, said FDA.
"Our advice about so-called 'safe' alternatives to street drugs remains the same: They are not safe. Do not buy them, and do not use them," said FDA Commissioner Mark B. McClellan.
The product involved in this case was sold by Colorado Springs-based Kekio, doing business as a store called Mind Excursions. The store, which also operates a website, has stopped selling the product, which does not bear the name of the manufacturer.
FDA said it will remove the product from the marketplace and will seek penalties against those responsible for offering them.