No.
Too many things in your stomach will increase the risk of vomiting and if you'll take a fuck ton of it then you'll vomit a lot, only increasing your chances of failure too.
Get a better sedative which you don't have to take too much of (tell the doctor that you're having anxiety and panic attacks, and say someone in your family used the medication that you want and it worked well for them so you want to try it too.) If you still can't get your hands on the proper sedatives then don't use any at all. SN still works without them, they are only optional.