spasm and endothelial injury during harvesting of saphenous vein grafts can be prevented by a protocol that involves perivenous infiltration with 37 degrees c papaverine hydrochloride solution prior to skin incision , initial distention of the vein with the same warm papaverine solution , storage of the distended vein graft in a cold papaverine solution , and maintenance of the vein in the distended state throughout the operative procedure .
C0700461
papaverine hydrochloride
C0030350
papaverine