one hundred and twelve subcutaneous injections of concentrated heparin ( 25,000 iu/ml ) , half in sodium heparin and half in calciparine , both with an identical heparin cation , were given in doses varying from 0.2 ml to 0.5 ml by a single operator in a double-blind study to assess the comparative local tolerance of the two heparin salts .
C0037513
sodium heparin
C0019134
heparin