Early Changes in Puffing Intensity When Exclusively Using Open-Label Very Low Nicotine Content Cigarettes

Area of Science:

• Tobacco regulatory science
• Nicotine addiction research
• Behavioral pharmacology

Background:

• Reducing cigarette nicotine content is a public health strategy.
• Smokers may compensate for lower nicotine by altering smoking behavior.
• Understanding compensatory smoking is crucial for policy impact.

Purpose of the Study:

• To investigate if puffing intensity increases when using very low nicotine content (VLNC) cigarettes compared to normal nicotine content (NNC) cigarettes.
• To determine if this compensatory behavior is sustained over time when no other nicotine sources are available.

Main Methods:

• A within-subject, residential study design.
• Sixteen daily smokers completed two four-night hotel stays, one with NNC and one with VLNC cigarettes.
• Mouth-level nicotine delivery was estimated by measuring solanesol on cigarette filters.

Main Results:

• Participants puffed VLNC cigarettes with significantly greater intensity than NNC cigarettes.
• This increased puffing intensity effect diminished over the four-day study period.
• Initial compensation (40.0% greater intensity) decreased significantly by the fourth day (16.1% greater intensity).

Conclusions:

• Smokers may initially increase puffing intensity to compensate for reduced nicotine in VLNC cigarettes.
• The required compensatory behavior becomes drastic and unsustainable over time.
• Smokers are unlikely to maintain compensatory smoking to achieve usual nicotine intake from VLNC cigarettes.