Abstract: The invention refers to pharmaceutical compositions based on oil extracted from the seeds of Carapa Guianensis Aublet and/or of chemical compounds isolated from this oil and responsible for its biological activity, the tetranortriterpenoids, presenting the following pharmacological activities: anti-allergenic, anti-inflammatory, analgesic and immune modulating with reduced side effects and low cost. Such pharmaceutical compositions of this invention are aimed at the treatment, or prevention, or inhibition of allergenic an inflammatory conditions in human beings, through oral or topic use. In each one of these cases, the composition can be in the liquid or solid form. Compounds for topic use of this invention are atoxic, or with low toxicity, and, specially, provided in the semi-solid form (cream).