For the vegetarian vampire in you, this elixir is meant to stave off that call of blood from human veins to minimize casualty.
 BE FOREWARNED Some vampires have had various side effects; among them randomly turning into a bat, the effects can be mitigated by the consumption of human blood. *womp womp* Fortunately this beverage is also locked in stasis and you'll likely need a spell to release it from its pin or patch form. But it is aesthetically pleasing and a great addition to any kawaii bag, vest, jacket backpack etc.