Vitamin K Rx is used to treat and prevent low levels of certain blood clotting factors that your animal’s body naturally produces. These substances help your animal’s blood to thicken and stop bleeding normally, for example after an accidental cut or injury. Vitamin K1 Injection Is A Yellow, Sterile, Aqueous Colloidal Solution Of Vitamin K1, With A Ph Of 5.0 To 7.0, Available For Injection By The Intravenous, Intramuscular, And Subcutaneous Routes. This treatment applies to the following species: Beef Cattle, Dairy Cattle, Goats, Horses, Sheep, Swine, Cats, and Dogs. This item requires a valid prescription from a licensec veterinarian. Prescription items are NON-RETURNABLE and NON-REFUNDABLE.