It was patented in 1980 and approved for medical use in 1995.[1]
Chemistry
Like many ACE inhibitors, this prodrug is converted to the active metabolite spiraprilat following oral administration. Unlike other members of the group, it is eliminated both by renal and hepatic routes, which may allow for greater use in patients with renal impairment.[2]
However, data on its effect upon the renal function are conflicting.[3]
^Shohat J, Wittenberg C, Erman A, Rosenfeld J, Boner G (February 1999). "Acute and chronic effects of spirapril, alone or in combination with isradipine on kidney function and blood pressure in patients with reduced kidney function and hypertension". Scandinavian Journal of Urology and Nephrology. 33 (1): 57–62. doi:10.1080/003655999750016294. PMID10100366.