The Larne base of Teva, a centre for pharmaceutical research and development, started out as Warner Chilcott.
The later was acquired by Actavis in 2013.
Actavis was then bought over in August last year by Teva, the biggest generics pharmaceutical company in the world.
Site head Jim McIlroy said: “At the Larne site we manufacture one product for the US marketplace, and also have a substantial research and development presence. We employ around 150 people.”
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