Thyrovet 1lb Powder: Levothyroxine Sodium

Levothyroxine sodium powder for hypothyroidism and thyroid hormone supplementation in horses. Levothyroxine sodium powder for equine thyroid hormone replacement. Mechanism: T4 → T3 peripheral conversion → nuclear thyroid hormone receptor activation → metabolic and cardiovascular gene regulation. Available in 1 lb and 10 lb containers for daily dosing in feed. Key information Thyroid hormone. Administer consistently (same time relative to meals). Narrow therapeutic index — recheck thyroid levels 4–8 weeks after starting. Store at room temperature; protect from light and humidity. Compounded powder: stability concerns — verify before dispensing.

Oral powder (horses): mix into small amount of grain or carrier feed. Administer once daily. Measure T4 levels to guide dose adjustment. Store at room temperature; protect from light. If a dose is missed Administer as soon as you remember. If it is almost time for the next scheduled dose, skip the missed dose and resume the normal schedule. Never double up doses to make up for a missed one. Thyroid hormone levels are maintained over days — a single missed dose is unlikely to cause a clinical problem. Resume normal dosing.

Thyrotoxicosis (overdose): excitability, tachycardia, PU/PD, weight loss, sweating. Monitor serum T4. Reduce dose if signs develop.

For animals Monitor T4 and clinical signs. Equine powder formulation — see levothyroxine precautions. For people handling this medication Wash hands thoroughly with soap and water after handling. Avoid contact with eyes; if contact occurs, flush with water for 15 minutes and seek medical attention. Keep out of reach of children. If accidental ingestion occurs, contact Poison Control (1-800-222-1222). Levothyroxine powder — Wash hands thoroughly with soap and water after handling. after handling. Avoid inhaling powder. Keep out of reach of children.

Contact your veterinarian. Levothyroxine overdose causes signs of hyperthyroidism: increased heart rate, weight loss, excessive thirst, hyperactivity, and GI signs. Contact your veterinarian, a veterinary emergency clinic, or the ASPCA Animal Poison Control Center (888-426-4435) immediately. Do not induce vomiting unless specifically directed by a veterinary professional.