Lutalyse is available in a 30ml or 100ml bottle. LUTALYSE® (dinoprost tromethamine) Sterile Solution was the first natural estrus-synchronization product approved for horses, and it remains unsurpassed today. It makes breeding more convenient, especially when coordinating the use of stallions. LUTALYSE also helps mares with no clinical signs of cycling or irregular estrous cycles become pregnant.

Our prices and customer service is the best around. Shop all departments including vaccines, joint medicines, ulcer treatments, just to name a few -- for horses, dogs, cats and humans. And remember, when your order totals $75 or more before taxes, you qualify for free ground shipping (except for vaccine orders).