Hi Palm Tree,
Thank you for your post. I am sorry to hear that this has happened to you. It is not OK to give a child drugs that are not prescribed for them. In terms of what abuse is it, it could be named as child abuse. It sounds like this experience is on your mind and perhaps you want to work through this. There are some places which you might find useful NAPAC have a helpline and email service https://napac.org.uk/about/ for adult survivors of childhood abuse. Adult children of dysfunctional families is a peer to peer support programme which follows a 12 step programme model http://www.adultchildrenofalcoholics.co.uk/ They have online meetings and face to face meetings. Sometimes sharing your experiences with others who understand what you have faced can be very helpful.