GSK accused of market 'abuse'
19 April 2013 Last updated at 14:04 BST
GlaxoSmithKline (GSK) has been accused of market "abuse" by the consumer watchdog, the Office of Fair Trading (OFT).
The OFT alleges that the pharmaceutical giant paid rivals to delay the release of their own versions of GSK's Seroxat treatment.
Alpharma, Generics UK and Norton Healthcare all received money not to enter the market with their copies of Seroxat, it said.
GSK said it "acted within the law".
Emma Simpson reports.