The compound according to the invention makes it possible to prevent and cure Alzheimer's disease. It consists of an association of African plants that are: Total extracts of plants of the Sterculaceae family of a genus Garcinia, more particularly of the species Garcinia cola (15%), total extracts of plants of the Moringaceae family, of a genus Moringa, more particularly of the species Moringa oleifeira (15%) Total extracts of plants of the rutaceae family of a genus fagara, more particularly of the species Fagara xanthoxyloïdes (20%), total extracts of plants of the family Cucurbitaceae, of the genus Momordica, more particularly of the species Momordica charantia (25%). Total extracts of plants of the family Rubiaceae, of the genus Sabicea, more particularly of the species Sabicea venosa (25%). The invention relates to a compound obtained by drying the different roots, seeds and leaves in the shade. Then they are crushed, sieved to obtain a fine powder. The various powders are mixed and distributed in empty capsules that have been cleaned beforehand and placed in small bottles of 20, 50, 60, 100 or 120 capsules. The more concentrated solid pharmaceutical compound may be supplemented with a solvent, in particular ethanol. Then each vial is placed in a suitable device for about a week. The enriched powders obtained are mixed using a mixer-mixer. These capsules can even be blistered. In liquid form, the various powders are weighed and taken in appropriate quantities, the mixture is made in a large container, and then a solvent is added. The solid or liquid pharmaceutical compound has an action against Alzheimer's disease. Le Composé selon l'invention permet de prévenir et soigner la maladie d'Alzheimer. Il est constitué d'une association de plantes africaines que sont : Extraits totaux de plantes de la famille des Sterculacées d'un genre Garcinia, plus particulièrement de l'espèce Garcinia cola (15 %), Extraits totaux de plantes de la famille Moringacée