» Hyaluronidase for Injection is a sterile, dry, soluble enzyme product prepared from mammalian testes and capable of hydrolyzing mucopolysaccharides of the type of hyaluronic acid. Its potency, in USP Hyaluronidase Units, is not less than the labeled potency. Hyaluronidase for Injection contains not more than 0.25 µg of tyrosine for each USP Hyaluronidase Unit. It may contain a suitable stabilizer.