Tolerance to nicotine develops with chronic smoking and may be associated with the onset of tobacco dependence. It is unclear how quickly this tolerance dissipates after terminating exposure to nicotine. We propose to longitudinally assess responses to measure doses of nicotine by nasal spray in 30 male and female smokers as they smoke ad lib for two days (baseline), quit for six days, and then resume smoking for two days on the GCRC. We hypothesize that responses to nicotine will become larger over the six days of cessation, showing dissipation of tolerance and then be smaller during the final two days of ad lib smoking, showing reinstatement of tolerance with return to smoking.

Project Start
2000-12-01
Project End
2001-11-30
Budget Start
Budget End
Support Year
40
Fiscal Year
2001
Total Cost
Indirect Cost
Name
University of Pittsburgh
Department
Type
DUNS #
053785812
City
Pittsburgh
State
PA
Country
United States
Zip Code
15213
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