title: [Commonplace use of "H"].
abstract: OBJECTIVE
  Describe characteristic use of cannabis and tobacco.
  
  
  METHODS
  A young couple were nicotine-dependent smokers who also regularly used cannabis. After treatment for nicotine withdrawal they no longer had a craving for cigarettes but use of hashish increased.
  
  
  CONCLUSIONS
  Although illegal in France, consumption of cannabis has become commonplace. Short-term risk may be low but the liposolubility of hallucinogenic tetrahydrocannabinol retards elimination leading to the risk of neuropsychiatric disorders after chronic, or even episodic use.
authors.affiliation: Centre de Tabacologie, Policlinique, Hôpital Henri Mondor, Créteil.
authors.forename: G
authors.initials: G
authors.lastname: Lagrue
authors.forename: S
authors.initials: S
authors.lastname: Cormier
authors.forename: I
authors.initials: I
authors.lastname: Vin-Datiche
authors.forename: A
authors.initials: A
authors.lastname: Porta
mesh_terms: D000328:Adult; D013759:Dronabinol / Q000009:adverse effects*; D005260:Female; D006213:Hallucinogens / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008385:Marijuana Smoking; D009538:Nicotine / Q000009:adverse effects; D012307:Risk Factors; D012907:Smoking / Q000009:adverse effects
chemical_list: D006213:Hallucinogens; D009538:Nicotine; D013759:Dronabinol