MONTREAL, CANADA -- (MARKET WIRE) -- April 17, 2007 -- Paladin Labs Inc. (TSX: PLB), a leading Canadian specialty pharmaceutical company, today announced the approval by Health Canada of a new one-step dosing regimen for Plan B®. Plan B® is an emergency contraceptive that prevents pregnancy from occurring when taken within 72 hours of unprotected sex. This new one-step dosing will allow women to take both pills at the same time, thereby increasing ease of use without any increase in side effects or loss of efficacy.