"Nightclub patrons and music festival-goers in Britain are turning to new herbal hallucinogens like salvia and kratom to get high, the Guardian reported Aug. 8.
Salvia is a Mexican plant related to sage that has been used by Indians in religious ceremonies for centuries. Users who chew, drink, or smoke the herb experience a powerful hallucinogenic effect.
Kratom is a Thai herb that works on the same brain receptors as heroin. Users immediately feel alert, have increased physical energy, and have the desire to interact with others."