Zwelish seemed particularly keen and chipper, and rolled up his sleeve to show off a nicotine patch.

NEWYORKER: Lucky Alan

Mecamylamine can be taken in pill form and does not produce the nausea associated with a nicotine patch.

ECONOMIST: Great drug, shame about the delivery system | The

Paul Sanberg, a neuroscientist at the University of South Florida in Tampa, and his colleagues, have found that a nicotine patch enhances the ability of haloperidol to suppress the symptoms of Tourette's.

ECONOMIST: Great drug, shame about the delivery system | The

In addition, Zyban has plenty of competition from nicotine gum and patch treatments.

FORBES: Prozac To Fight PMS Under New Name

Smokeless nicotine, ingested via a skin patch, is less than ideal because its effects on the body are too broad to treat diseases of the central nervous system such as Alzheimer's.

FORBES: The Nicotine Cure

According to Dr Sanberg, the paradox of nicotine use in this case is explained because the drug is being administered continuously, via a patch, thus overloading the nicotinic receptors.

ECONOMIST: Great drug, shame about the delivery system