Consultant pharmacist James Longdon (R) takes the blood pressure of a man at a Boots pharmacy in Manchester, northern England, February 14, 2007. Men will be able to buy impotence treatment Viagra over the counter in Britain for the first time from Wednesday from British chemist chain Alliance Boots. Three Manchester Boots pharmacies will sell the prescription-only medication made by U.S. drugs group Pfizer in a pilot programme from February 14. REUTERS/Phil Noble (BRITAIN)