Medpac

A medpac is a quick-acting syringe filled with a concentrated dose of kolto. As an action, you can use this medpac to restore hit points to a beast or humanoid within 5 feet. The creature rolls one die equal to the size of their Hit Die and regains hit points equal to the amount rolled + their Constitution modifier (minimum of one hit point). If the creature has Hit Dice of different sizes, use whichever Hit Die size they have the most of.