Each marked division (2 turns of the ring) is equivalent to 1 unit dose (i.e. 1 g Phenylbutazone).

Horses: 450 kg (1000 lbs) body weight:

2 unit doses twice on day one (equivalent to 8.8 mg/kg/day), 1 unit dose twice daily for four days (4.4 mg/kg/day) followed by 1 unit dose daily or on alternate days (2.2 mg/kg/day), sufficient to keep the animal comfortable.

Ponies: 225 kg (500 lb) body weight:

1 unit dose (4.4 mg/kg) on alternate days.

Remove cap from nozzle, turn ring to required dosage and express as near to the back of the tongue as possible. Replace cap after use.

Adjust dose according to body weight.

Discontinue treatment if no response is evident after four to five days treatment.