Compared with intravenous fentanyl , TA in bitches : may be easily performed in non-inflamed , ulcerated , adhered mammary tumours ; has an isoflurane-sparing effect ; improves transoperative and immediate postoperative analgesia ; is apparently safe for use in clinical conditions as evidenced by the fact that it did not produce any adverse signs or lidocaine plasma concentrations compatible with toxicity ; does not modify the recovery time ; and facilitates the surgical procedure without interfering with wound healing .
