Dannycoffee doesn't have sibutramine. Sibutramine, also known as N-( 1-( 1-(4- chlorophenyl) cyclobutyl) -3- methyl butyl) -N, N- dimethylamine, with the molecular formula of C 17H26ClN, was once used as a diet drug, but it was banned because it would increase the serious cardiovascular and cerebrovascular risks. Denny Coffee, imported from Russia, adopts pure plant formula of Brazilian wild black coffee beans.