IRVINE, Calif.--(BUSINESS WIRE)--April 7, 2006--Allergan, Inc. (NYSE:AGN - News) announced today that the initial purchasers of its $700 million in aggregate principal amount of 1.50% Convertible Senior Notes due 2026 have exercised their over-allotment option in full to purchase an additional $50 million aggregate principal amount of notes. Including the sale of the additional notes, which is scheduled to settle on Wednesday, April 12, 2006, the aggregate principal amount of notes sold by Allergan in this offering will be $750 million.