In Each Pilll Other Information: Calcium content: 160 mg/pill. Contents sealed: Each Diurex, light blue colored, oval shaped pill bears the identifying mark Alva plus a 1 on the pill's reverse side and is sealed in a clear plastic blister with a foil backing. Do not use if seal appears broken or if product contents do not match product description. Note: The appearance of golden tinted urine which may occur after taking DIUREX Water Pills is a normal and temporary effect. You may report serious side effects to the phone number under Questions? below.