Sustain III^® Calf Bolus

Sustain III Calf Boluses (Sulfamethazine Sustained Release Boluses) are intended for oral administration to ruminating replacement calves (calves over one (1) month old that are not on an all-milk diet). Sustain III Calf Boluses are indicated for the treatment of the following diseases when caused by one or more of the following pathogenic organisms sensitive to sulfamethazine: Bacterial Pneumonia (Pasteurella spp.), Colibacillosis (Bacterial Scours) (E. coli), and Calf Diphtheria (Fusobacterium necrophorum).

Balling gun sold separately.

Active Ingredients: Each Sustain III® Calf Bolus contains:

Rx: Available direct to customers with valid prescriptions: See service area map

Indications: Sustain III® Calf Boluses are indicated for the treatment of the following diseases when caused by one or more of the following pathogenic organisms sensitive to sulfamethazine:

Bacterial Pneumonia and Bovine Respiratory Disease Complex (Shipping Fever Complex) (Pasteurella spp.), Colibacillosis (Bacterial Scours) (E. coli), Necrotic pododermatitis (Foot rot), Calf Diphtheria (Fusobacterium necrophorum), Acute Metritis (Streptococcus spp.).

Dosage and Administration: SUSTAIN III® Boluses should be given according to the following dosage schedule:

200 lb animal: 1 bolus
400 lb animal: 2 boluses
600 lb animal: 3 boluses
800 lb animal: 4 boluses
1,000 lb animal: 5 boluses

This bolus may be divided for a better approximation of correct dose; however, care should be taken not to crush the bolus. Care should also be taken to ensure the entire dose has been swallowed by the animal. Observe animals following administration to ensure boluses are not regurgitated. Lubricate SUSTAIN III® before dosing animals.

SUSTAIN III® Boluses are designed to provide a therapeutic sulfamethazine level in approximately 6 hours and persist in providing this level for 72 hours (3 days). After 72 hours, all animals should be re-examined for persistence of observable disease signs. If signs are present, consult your veterinarian. It is strongly recommended that a second dose be given to provide for an additional 72 hours of therapy, particularly in those more severe cases. The above dose schedule should be used at each 72-hour interval.

Fluid intake must be adequate at all times throughout the three-day therapy provided by the sustained release bolus.

Storage: Store at 20°-25°C (68°-77°F)

Caution: Sustain III® Calf Bolus has a 12 day withdrawal. Exceeding two (2) consecutive doses may cause violative tissue residues to remain beyond the withdrawal time. Do not use in calves under one (1) month of age or calves being fed an all-milk diet. Use in these classes of calves may cause violative residues to remain beyond the withdrawal time. Do not use in female dairy cattle 20 months of age or older. Use of sulfamethazine in this class of cattle may cause milk residues.

Shipping: Ships via Ground. Overnight shipping available upon request for a $25 shipping fee on orders up to 5 lbs. Heavier orders require a custom quote. Overnight shipping is not eligible for free shipping.

Restrictions: Cannot ship to Canada. Veterinarian prescription required in all states effective June 11, 2023.