Tolvaptan is a medication used in the treatment of hyponatremia, a condition characterized by low levels of sodium in the blood.Tolvaptan is also used in the management of autosomal dominant polycystic kidney disease (ADPKD) to slow the progression of kidney enlargement and associated complications. Tolvaptan is classified as a vasopressin V2 receptor antagonist.Tolvaptan is typically taken orally in tablet form. Buy high quality Tolvaptan from Molsyns Research. Molsyns Research is one of the leading manufacturer and exporter of Tolvaptan