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. 2019 Sep 16;179(12):1721–1723. doi: 10.1001/jamainternmed.2019.3649

Table. Predicted MOE for Top-Marketed Pulegone-Containing Smokeless Tobacco and e-Cigarette Liquids Used in Vape Tanks and Vape Mod Devices.

Type and Flavora Pulegone Concentration (μg/g) MOE for Daily e-Liquid (mL/d) or Smokeless Tobacco (g/d) Amount Consumedb Fold Increase in Daily Exposure Compared With Menthol Cigarette Usec
5 10 20 30
e-Cigarette
V2 Menthol, range 50.1-119.0 1298-3084 649-1542 325-771 NA 86-1608
V2 Peppermint, range 78.3-82.7 1868-1973 934-987 467-493 NA 136-1118
Premium Menthol 115.0 1344 672 336 NA 198-1554
South Beach Smoke Menthol 28.2 5479 2739 1370 NA 48-282
South Beach Smoke Peppermint 25.7 6012 3006 1503 NA 44-348
Smokeless Tobacco
Skoal Xtra Mint snuff 48.8 NA 1646 823 549 168-1319 (Light users)/126-990 (heavy users)d

Abbreviation: MOE, margin of exposure.

a

V2 products were manufactured by VMR Products LLC; Premium products are manufactured by PremiumEStore LLC; South Beach Smoke products are manufactured by southbeachsmoke.com; and Skoal products are produced by the US Smokeless Tobacco Company.

b

The no observed adverse effect level for pulegone is 13.39 mg/kg of body weight/d.1,2 User body weight was assumed to be 60 kg; e-Liquid specific density equals 1.04 g/cm3.

c

Menthol cigarettes were estimated to contain 0.037 to 0.290 μg/g.5 Each cigarette was considered to have 1 g of tobacco; 1 pack equals 20 cigarettes.

d

Based on daily use, a light user is considered to consume 10 g of smokeless tobacco; a moderate user to consume 20 g of smokeless tobacco; and a heavy user to consume 30 g of smokeless tobacco.