'Mercury Drug P500 Gift Certificate by Mercury Drug Can be used at any Mercury Drug outlet. Additional Shipping charges may apply based on the total value of the gift certificates purchased Delivery Areas and Lead Time: Metro Manila Please allow 2-3 days for processing and delivery Outside Metro Manila Please allow 4-7 days for processing and delivery Orders placed after Friday 12 noon (Phil time) will be processed the following Monday. We deliver to most major cities of Luzon, Visayas and Mindanao, including selected Out-of-Town areas of the Philippines.