Europe Clears Stop-Smoking Pill

European regulators cleared an antismoking pill made by drug giant Pfizer(PFE Quote) about four months after it was given the green light in the U.S.

The approval of the drug, called Champix in Europe, was based on clinical trials involving 4,000 smokers who smoked an average of 21 cigarettes a day for an average of 25 years.

Patients who received a 12-week course of the drug were twice as likely to quit smoking as patients taking the antidepressant bupropion, which goes by the GlaxoSmithKline(GSK Quote) brand name Wellbutrin. Patients taking Champix were nearly four times more likely to quit compared with those given a placebo. ...