Thyrozine Powder: Levothyroxine Sodium

Levothyroxine sodium powder for equine thyroid supplementation and hypothyroidism management. Levothyroxine sodium powder (equine thyroid hormone supplement). Mechanism: T4 → T3 conversion → thyroid hormone receptor activation → metabolic regulation. Equine powder form for daily in-feed dosing for hypothyroidism and metabolic support. 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 grain or carrier feed at appropriate dose. Administer daily at consistent time. 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.

Same as levothyroxine/thyroxine — thyrotoxicosis signs with overdose. Monitor T4 and clinical response.

For animals Monitor T4 and clinical signs. Equine powder. 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. Keep away from 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.