Perepat (Sonneratia alba) is a mangrove plant that contains high antioxidant compounds consisting of alkaloids, flavonoids, phenolics, saponins and tannins. In this study, we will analyze the effect of giving Sonneratia alba extract on the thickness of the tunica muscularis aorta abdominal male white rats (Rattus norvegicus) Wistar strain. Eighteen male Wistar rats were divided into negativ…