July 29 (Reuters) - British drugmaker GSK on Monday said it has

agreed to confidentially settle a lawsuit in Illinois alleging its discontinued

heartburn drug Zantac caused cancer, the latest in a series of settlements to

end costly litigation.

GSK did not admit any liability, and said it would vigorously defend itself

in any other Zantac cases.

(Reporting by Yadarisa Shabong and Shanima A in Bengaluru; Editing by Varun H

K)