Louis Lewin
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Louis Lewin was a German pharmacologist who published the first systematic study of the cactus (Anhalonium lewinii) in 1886.
Drug Classification
One of Lewin's most enduring tasks was to create a system of classification of drugs and psychoactive plants based on their pharmacologic action. His original categories were:
- Inebriantia (Inebriants - Such as Alcohol or Ether)
- Exitantia (Stimulants - Such as Khat or Amphetamine)
- Euphorica (Euphoriants and Narcotics - Such as Heroin)
- Hypnotica (Tranquilizers - Such as Kava)
- Phantastica (Hallucinogens or Entheogens - Such as Peyote or Ayahuasca)