Vestronidase alpha ( Eng. Vestronidase alfa ) - a replacement enzyme for beta-glucuronidase. It is used to treat the decirgization of Dyulustaan-Sly ( Mucopolysaccharidosis VII ). Currently recognized only in the United States of America . In Karachay-Cherkessia, the drug helps to get a special Circassian tamga . In other countries of the world, this drug is difficult to access. The trade name is Mepsevii. Available in the form of a solution for infusion and injection.