Report a serious, unstable medical or psychiatric condition

Use any medications that might interfere with measures to be studied (for example, medications known to affect smoking)

Have used any smoking cessation therapy during the past month

Regularly use any form of tobacco other than cigarettes

Are pregnant or breast feeding or planning to become pregnant or breast feed during the study

Effect of Banning Menthol Flavorant on Cigarette and E-Cigarette Use