RALEIGH, N.C.--(BUSINESS WIRE)--Salix Pharmaceuticals, Ltd. (NASDAQ:SLXP) today announced its intention to offer, subject to market and other customary conditions, $500 million aggregate principal amount of convertible senior notes due 2019 to qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933, as amended (the “Securities Act”). Salix also expects to grant the initial purchasers an option to purchase up to an additional $75 million aggregate principal amount of notes to cover overallotments.