The wait is frustrating and worrying. And so many questions!

@katwat Ring your onc or nurses and tell them what's happening if you haven't already.  I made the mistake of waiting the weekend out the first time and it was awful.  When I did call them on the Monday, they were able to fax a script to my local pharmacy who were happy to fill it (you need to make sure that your pharmacy will do that if necessary and that they have whatever it is you're prescribed).