Hey all, How do drug delivery systems work? Lets say I have a drug that I want to test out, lets called it DrugX. Now drugX will not work by it self because there is something in the body that kills it right away, or it cant bypass the bloodbrain barrier. Now, I have this chemical called MoleucleX, it can get DrugX into the body no problem, or it can get past the blood brain barrier. So... How do you combine them? Is it as simple as just mixing them together and then giving it to the subject?