Aldactone 25 mg by Pfizer Canada is a prescription diuretic containing spironolactone 25 mg per film-coated tablet. Each light yellow, round, biconvex tablet is debossed ALDACTONE 25 on one face and SEARLE 1001 on the other, and has a peppermint odour for easy identification. This oral tablet is supplied in a bottle of 100 with DIN 00028606. Prescription required in Canada and Quebec.