Equine Health Update - June 17, 2014 **Vitamin B Complex: Essential for Equine Health** **Overview:** Vitamin B complex plays a vital role in preventing and treating vitamin B deficiencies in horses. It's particularly crucial as these vitamins aren't stored in the body and must be replenished daily. While good pasture provides ample B vitamins, concentrated feeds often lack them. The complex aids in nutrient metabolism, including fats, proteins, and carbohydrates. **Benefits:** Injectable vitamin B complex, containing thiamine, riboflavin, pyridoxine, niacinamide, d-panthenol, and cyanocobalamin, helps boost metabolism, especially in deficient horses. However, for healthy horses, excess B vitamins are swiftly excreted, making injections unnecessary. **Usage:** Vitamin B complex is administered orally or via injection. It's commonly used for horses with inadequate diets, illness, liver issues, or post-surgery recovery. Additionally, hard-working horses may benefit from supplementation. **Dosage:** Dosage varies based on method and condition. Oral administration ranges from syrup to capsules, while injections are given intramuscularly, intravenously, or subcutaneously. Careful dosing is crucial to avoid adverse reactions, such as anaphylaxis. **Side Effects and Precautions:** While side effects are rare, allergic reactions may occur. Signs include facial swelling, hives, diarrhea, and in severe cases, shock or coma. It's essential to avoid overdosing and consult a veterinarian before administration, especially if there's a history of hypersensitivity. **Interactions and Overdose:** There are no reported interactions, and vitamin B complex has low toxicity levels when used correctly. However, adherence to dosage instructions is vital to prevent adverse effects. **Conclusion:** Vitamin B complex is indispensable for equine health, aiding in energy production, digestion, and blood formation. Proper administration and monitoring ensure its benefits without risks.