Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Pressor substance
Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026
Pressor substance: A substance that elevates the arterial blood pressure. For example, prostacyclin (prostaglandin PGI2) is a potent pressor substance. In medicine, pressor refers to raising the blood pressure. The word comes from the French verb "presser" meaning "to exert pressure" or "to squeeze."
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