Perceptions of Vaping Products

PRIMARY OBJECTIVES: I. Assess the pharmacokinetics of metatine and nicotine electronic (e)-cigarettes. II. Assess the abuse liability and appeal of commercial e-cigarettes containing metatine versus nicotine. III. Determine the impact of metatine on e-cigarette puffing behavior (topography). OUTLINE: Participants attend 3 sessions where they will be randomized to 1 of 3 types of e-cigarette. Participants will use the e-cigarette ad-libitum for 30 minutes and answer survey questions about their perceptions of the e-cigarette. Participants must also undergo 4 blood draws during the vaping session.