Rescinnamine, known by the brand names moderil, cinnasil, and anaprel, is an angiotensin-converting enzyme inhibitor used as an antihypertensive drug. Rescinnamine, known by the brand names moderil, cinnasil, and anaprel, is an angiotensin-converting enzyme inhibitor used as an antihypertensive drug. It is a vinca alkaloid obtained from Rauwolfia serpentina and other species of Rauwolfia.