IRVINE, Calif. (CBS.MW) -- Shares of Allergan jumped 6 percent Monday after the specialty pharmaceutical company announced it won a highly anticipated regulatory approval to market its Botox drug as a ...

CHICAGO (Reuters) - Allergan Inc said on Thursday that its popular Botox facial wrinkle-smoother worked as a treatment for adults suffering from chronic migraines, according to late-stage clinical ...

Lydia August, 28, told Newsweek, "I have not shown any improvement," since the treatment was done 12 days ago.

We’re adding branded drug giant Allergan (AGN), which is based in Ireland, to our model portfolio, says biotech and healthcare sector expert Bret Jensen, editor of Investors Alley’s Biotech Gems.