Metolazone We have found the Brand name of Metolazone. Currently, 2 brands available by this Metolazone.List of Brands for Metolazone MedicationMerozolyn (Tablet) 500 mcgMetolazoneUnimed Unihealth Pharmaceuticals Ltd.Merozolyn (Tablet) 5 mgMetolazoneUnimed Unihealth Pharmaceuticals Ltd.