As for the FDA seeing fit to regulate nicotine for being a poison, well...it takes 60 milligrams of PURE nicotine to kill someone. The nicotine in e-cigs is mixed with propylene glycol, water, and flavoring. Then in cartridges, there is a little bit of fuzz to contain the mixture.
AGAIN...the nicotine in e-cigs or any other form utilized by smokers or chewers is NOT pure. So it is like the nicotine in amy other smoking or chewing tobacco product.
I would say it would be just as possible for someone to potentially poison themselves with chewing tobacco as they would from an e-cig cartridge. The amount of nicotine in a regular "chaw" is 4.5 milligrams. There are maybe 20 "dips" in a can. So if you downed a whole can...the results could be potentially fatal with 90 milligrams or so.
I am told that a baby can die from consuming two cigarette butts, but I cant find anywhere to verify this...so I may be wrong on that. But I do know that a few cigarette butts can be fatal to a small dog. Usually vomiting takes care of that, however.
This the breakdown I received from a e-cig manufacturer:
1. Nicotine Concentration - E-Cig Cartridges.
Cartridge TypesNiotine CocentrationNiotine-Free0 mgLow-Density10 mgMedium-Density14mg, 16 mgHigh-Density18mg, 24 mg
2. Nicotine Content of Each Puff You Take (for Real Cigarette)
One Real CigaretteNicotine Content: 0.6mg ~ 2.4mgPuffs to take for each cigarette15 puffsNicotine Content inhaled at each puff0.04mg ~ 0.16mg(0.6mg/15=0.04mg, 2.4mg/15=0.16mg)
3. Nicotine Content of Each Puff You Take (for Electronic Cigarette)
Puffs to take for each cigaretteapproximately 150 puffsNicotine Content inhaled at each puffNicotine-Free Cartridge: 0mg/150 = 0 mgLow-Density Cartridge: 10mg/150 = 0.066mgMedium-Density Cartridge: 0.093mg ~ 0.107mgHigh-Density Cartridge: 0.120mg ~ 0.160mg