GlaxoSmithKline expands API production for COPD inhalers as Advair sales wither

Even with looming generic competition expected to take a big bite out of sales of its blockbuster Advair, respiratory drugs remain key to GlaxoSmithKline, and it continues to plow money into their production. The latest project is an expansion to make APIs for one of its COPD drugs that it is leaning on as Advair revenue shrinks.