It is an enzyme. Not lidocaine.

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Note added at 4 mins (2009-02-06 17:35:25 GMT)
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http://www.xumuk.ru/farmacevt/1060.html
ЛИДАЗА (Lydazum). Препарат, содержащий фермент гиалуронидазу. Аналогичные препараты выпускаются за рубежом под названиями: Аlidase, Нуаlase, Нуаlidase, Нуаluronidasum, Нуasa, Нуаson, Нуlase, Invasinum, Spredinе, Widase и др.

http://en.wikipedia.org/wiki/Hyaluronidase
1 Use as a drug

By catalyzing the hydrolysis of hyaluronic acid, a major constituent of the interstitial barrier, hyaluronidase lowers the viscosity of hyaluronic acid, thereby increasing tissue permeability. It is, therefore, used in medicine in conjunction with other drugs in order to speed their dispersion and delivery. The most common application is in ophthalmic surgery, in which it is used in combination with local anesthetics. It also increases the absorption rate of parenteral fluids given by wikt:hypodermoclysis, and is an adjunct in subcutaneous urography for improving resorption of radiopaque agents. Hyalurodinase is also used for extravasation of hyperosmolar solutions. usually a 0.2 ml of the drug is injected around the area of extravasation, Total of 1 ml is used.