What is described here, in certain embodiments, are proliposomal Powder Dispersions which comprise (a) testosterone, cholesterol, (b) and (c) at least one phospholipid.Lo que se describe aquí, en ciertas realizaciones, son dispersiones de polvo proliposomal que comprenden (a) la testosterona, (b) colesterol, y (c) al menos un fosfolípido.