Stimulus effects of propylene glycol and vegetable glycerin in electronic cigarette liquids

Electronic cigarette (EC) use has been continually increasing in the United States (Bao et al., 2018), and there is debate on the extent ECs reduce harms associated with conventional tobacco smoking relative to causing new public health problems. Most EC liquids comprise of propylene glycol (PG) and vegetable glycerin (VG) (e.g., 80-97%, Han et al., 2016). Stimulus effects from conventional cigarettes (CCs), such as airway sensory effects (e.g., strength of the puffs in the chest, throat), are associated with subjective liking (Westman et al., 1996), and PG/VG may alter stimulus effects of ECs.
Source: Drug and Alcohol Dependence - Category: Addiction Authors: Tags: Short communication Source Type: research