Ahsan Allahu ilaykum : Due to long use of medication it has affected my memory sometimes people notices that I do 3 sujud instead of two. It seems often when I go into sujud I forget the first one. I have been doing sujud as-sahw when in doubt. What can I do ?

If you added a sajdah by mistake, your salah is valid and you make sujud as-sahw. If doubt comes to you often, set it aside, act on what you think most likely, and make no sujud as-sahw for it. To help your memory you may count on your fingers, which the scholars allowed for one who forgets.