Vary dosage schedule according to circumstances and depth and duration of sedation required. Intravenous administration usually gives a more rapid onset of effect but the duration is shorter than with intramuscular administration.
Xylazine may be used alone or combined with other sedatives, analgesics and anaesthetics to produce the desired effect from mild sedation to heavy sedation to (in combination with ketamine) full surgical anaesthesia.
Mild sedation
Intravenous (slow): 0.25 – 0.5 mL per 100 kg bodyweight (0.25 – 0.5 mg per kg).
Heavy sedation
Intravenous (slow): 1.1 mL per 100 kg bodyweight (1.1 mg per kg).
Intramuscular: 2.2 mL per 100 kg bodyweight (2.2 mg per kg)
Spasmodic Colic
See technical notes for spasmodic colic dosage and instructions