Lab. Du Tensionorme

Laboratoire du Tensionorme was a French pharmaceutical company that specialized in the treatment of cardiovascular diseases, particularly hypertension. The firm is best known for developing and marketing Tensionorme, a fixed-dose combination drug containing the beta-blocker atenolol, the diuretic chlortalidone, and the vasodilator hydralazine. Based in Paris, the laboratory was a significant player in the French antihypertensive market during the latter half of the 20th century. The company was eventually acquired by Laboratoires Houdé and subsequently integrated into the corporate lineage that formed Sanofi. Today, Laboratoire du Tensionorme exists as a legacy brand within the Sanofi portfolio, reflecting the historical consolidation of the French pharmaceutical industry.