Isoflurane

Inhalation anaesthetic for use in horses, cats, dogs, ornamental birds, reptiles and small mammals. 

Size: 250 mL vial 

Dosage and Administration

Premedication

AVet Isoflurane should be used only in an isoflurane specific vaporiser. AVet Isoflurane should be administered using an accurately calibrated vaporiser in an appropriate anaesthetic circuit. Levels of anaesthesia may be altered rapidly and easily. AVet Isoflurane may be administered in oxygen/nitrous oxide mixtures. AVet Isoflurane may be used with other drugs commonly used in veterinary anaesthetic regimens. Drugs used for premedication should be selected for the individual animal. 

The MAC (minimum alveolar concentration) in oxygen given below for the target species should be used as a guide only. The actual concentrations required in practice will depend on many variables including the concomitant use of other drugs and clinical status of the patient. 

Induction, Maintenance and Recovery 

Species  MAC (%) Induction (%*) Maintenance (%)
Horse 1.31 3.0 - 5.0 (foals) 1.5 - 2.5
Dog 1.28

Up to 5.0 

1.5 - 2.5 
Cat 1.63 Up to 4.0  1.5 - 3.0 
Ornamental Birds  ca. 1.45 3.0 - 5.0  0.6 - 5.0 
Reptiles  Not Published  2.0 - 4.0  1.0 - 3.0 
Small Mammals 

2.05 (rabbit)

1.34 (mouse)

1.38-2.40 (rat)

2.0 - 3.0  0.25 - 2.0 

* Induction usually occurs via face mask 

In all species, recovery is normally smooth and rapid. 

Active Constituent(s)

Isoflurane 1 mL/mL

Contraindications

DO NOT use in animals with a known sensitivity to isoflurane or with a known susceptibility to malignant hyperthermia.