That would be the nicotine in the cigarette.
this answer sucks
tide
Cigarette amoke
Nicotine
nickateen
Over 1,000 different substance all in them
If this is happening you need to go and see a Doctor.
Nicotine
A short.
nicotine
over 90%
The adds by cigarette companyhave been banned as it causes cancer and to warn the public.
Nicotine