A couple of hundred milligrams, would require you to be smoking a hundred cartons being smoked, ALL...at the same time. Essentially, you know little to nothing about the topic, you are just running around like Chicken Little. "It should be noted that a regular pack of cigarettes contains 8 to 20 milligrams of nicotine and from that only 1 mg is absorbed when it is smoked. Now on a smaller scale, this means from every cigarette stub containing approximately 1.2 mg of nicotine, the smoker will absorb around 0.1 mg of nicotine from it.": http://med-health.net/how-many-milligrams-of-nicotine-in-a-cigarette.html