Forthyron (Levothryoxine) 400mcg (100 Flavoured Tablets) **REPLACING APEX THYROXINE** Forthyron $33.90 PRESCRIPTION REQUIRED FOR THIS ITEM This item is a prescription medication. A prescription is required from your veterinarian before we can supply this product. Please ensure that you have read the... Qty in Cart: 0 Quantity ( in cart): Decrease Quantity: Increase Quantity: Price: $33.90 Subtotal: Add to Cart