The Effect of Electronic Cigarette Liquid Characteristics in Smokers.

The Effect of Electronic Cigarette Liquid Characteristics in Smokers.

The purpose of this study is to determine differences in nicotine delivery, user behaviors, subjective effects, and physiological effects, when cigarette smokers use an electronic cigarette with different nicotine (and sweetener) concentrations relative to using their own brand of cigarettes.

Inclusion Criteria-- Participants must be:

• Healthy (determined by self-report)
• Between the ages of 21-55 years old
• Current cigarette smokers
• Wiling to provide informed consent
• Able to attend the lab session and abstain from tobacco/nicotine products as required
• Agree to use designated products according to the study protocol

Exclusion Criteria:

• Women if they are breast-feeding or test positive for pregnancy (by urinalysis) at screening.
• Individuals who weigh less than 110 pounds.

Some study details about the eligibility criteria are purposely omitted at this time to preserve scientific integrity. Full details will be posted at the conclusion of the study.