Zolitil Is this for dogs operation for castrate?

What kind of drug is zolitil? Is it a general anaesthesia for dogs?

http://www.virbac.cz/zoletil_guide_cats.html It is a fast acting anesthetic, used for a lot of species. Your vet can choose the best combination of anesthetics to use - castration is one fo the most common procedures done in veterinary medicine.