MdmA is far from a miracle drug, but it does allow some one to open up more and talk about themself. It also ease the bond between people. Since therapy need to start with a bond of trust between the patient and the professional, it accelerate the treatment.

Ketamine is very fascinating, from what I remember, because the effect last longer than the drug. It allow some new neural connection, which help to change how one perceived the world. Ketamine in itself is not the solution, but it make it easier to help some one to get out of depression, since it is easier to change the way you perceived the world.