what is the addictive chemical in tobacco Chemicals Products and Your Health Chemicals in Tobacco Products and
Description
Smokers cough may be worse upon waking because the cilia were unaffected by tobacco smoke during sleep and so were more able to catch and expel the chemicals

The primary smokers cough cause is smoking itself though there are cases wherein people in particular environments have reported smokers cough symptoms

Office of Regulatory Affairs, 2018

They did this on purpose, Vitale said of the industry

Its an unique flavors of Tobacco

More than 550 companies have now submitted over 6.5 million tobacco products to the FDA, all but a sliver related to e-cigarettes