Preserving Access to Safe Affordable Canadian Medicines Act of 2003

Preserving Access to Safe, Affordable Canadian Medicines Act of 2003 - Amends the Federal Food, Drug, and Cosmetic Act to direct the Secretary of Health and Human Services to promulgate regulations prohibiting discrimination against imports of prescription medications from Canada. Defines discrimination as any measure which has the effect of providing U.S. consumers access to prescription medications on terms or conditions that are less favorable than the terms or conditions provided to any foreign purchaser of such products, or which otherwise restricts or reduces access by United States consumers to a prescription medication from Canadian pharmacies. Imposes a civil penalty against manufacturers who violate this Act.