The invention relates to a Cannabis-based pharmaceutical composition for the treatment of hypertensive disorders by submucosal delivery comprising a pharmaceutically acceptable base and an effective amount of at least one cannabinoid or endocannabinoid containing extract of a cloned hybrid of the plant Cannabis sativa, subspecies sativa and Cannabis sativa, subspecies indica of the CTSX-ISS lineage and methods of treatment of primary and secondary hypertension, the secondary hypertension resulting from pheochromocytoma, primary hyperaldosteronism, adrenal hyperplasia, pulmonary hypertension, portal hypertension, folate deficiency hypertension, arterial hypertension or familial hypertension by administration between one and eight times per day.
