Immediate Switching to Reduced Nicotine Cigarettes in a U.S.-Based Sample: The Impact on Cannabis Use and Related Variables at 20 Weeks.
Ellen MeierNathan RubinSarah S DermodyKatelyn M TessierStephen S HechtSharon MurphyJoni JensenEric C DonnyMustafa al'AbsiDavid DrobesJoe KoopmeinersRachel L Denlinger-ApteJennifer W TideyRyan VandreyCole ThorneDorothy K HatsukamiPublished in: Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco (2022)
The present study is the longest longitudinal, prospective comparison study of smoking behavior and exposure to harmful constituents among those who co-use cigarette/cannabis versus cigarette-only after immediately switching to very low nicotine content cigarettes (VLNC). Those who co-use experienced similar reductions in cigarettes per day and tobacco-specific exposure, compared to those who only use cigarettes. However, co-use groups experienced smaller reductions in non-tobacco specific toxicants and carcinogens compared to the cigarette-only group, potentially due to combustible cannabis use. Additionally, those who co-use and switched to VLNC may be susceptible to slight increases in cannabis use (approximately two more days/year).