Hospitalizations caused from smoking K2, a laboratory-produced drug with similar effects to marijuana, have become more prevalent since December 2009 with users experiencing increased heart rates, loss of consciousness, paranoia and psychotic episodes.
Lawmakers are looking to ban synthetic marijuana, a substance that mimics the effects and is currently legal.
Sen. Kurt Schaefer, R-Columbia, said mid-Missouri emergency rooms have treated adolescents complaining of negative effects.
Missouri lawmakers consider a ban on a synthetic drug that mimics the effects of marijuana. The drug is widely available and legal, but there has not been a study on its effect on humans.