How to make ear preparation with chloramphenicol and dexamethasone

You write to me that the ear drops are meant for the inner ear. It is therefore necessary to prepare a solution and to do so requires soluble products. Both medicines exist but I fear that you will not be able to purchase them in Belgium. This means that I fear that you will not be able to prepare such ear drops. After all, we need chloramphenicolhemisuccinate and dexamethasone sodium phosphate. Should both occur   under Special form (gelyofilized powder), an ear drop may be prepared. This is to be viewed.