HI Geoff and welcome to the forum.
I am afraid that I have no experience of chemo and so am not in a position to offer any meaningful insights to you.
I just thought I would let you know that your post has appeared on the site and so I would give it a bump up.
There are many knowledgeable folk here as you are aware and I am sure that they will give you a response in due course.
Best wishes
Kevan