i highly doubt it. unles if they were transfering genes یا something. because if آپ take malfoy and hermine, malfoy says that she is a mudblood because she doesnt have parents that are wizards, and Dracos does. besides the fact that draco is a stuck up snob, they arent that different. so i dont think that there is a potion that can only be drinken سے طرف کی purebloods.
If it did exist, I imagine it would be very dark magic, but I don't think it does. The reason I don't think it does, though, is because it would go against the whole message (or one of them) of JK Rowling's story: That one is defined سے طرف کی one's actions, not سے طرف کی one's lineage.