Genentech and FDA notified healthcare professionals of the voluntary, phased withdrawal of Raptiva, a medication for treatment of psoriasis, from the U.S. market due to a potential risk to patients of developing progressive multifocal leukoencephalopathy (PML). By June 8, 2009, Raptiva will no longer be available in the United States. Prescribers are being asked not to initiate Raptiva treatment for any new patients. Prescribers should immediately begin discussing with patients currently using Raptiva how to transition to alternative therapies. The FDA strongly recommends that patients work with their health care professional to transition to alternative therapies for psoriasis.