Injectable anaesthetic preparations for use in non-human animals, namely, dogs, cats and horses; steroids for use in non-human animals; Veterinary preparations, namely, synthetic neuroactive steroids used as an induction agent, to induce and maintain general anesthesia and sedation administrated by injection; veterinary preparations containing alfaxalone; veterinary substances in the nature of preparations for an induction agent, to induce and maintain anaesthesia, and sedation in animals