Welcome to the forum
@jtosh
Yes unfortunately the ‘chain of custody’ rules are quite strict, and you can‘t generally return prescribed medicines once they have left the pharmacy - in case they have been tampered with, or whatever.
If the ‘pay it forward’ groups don't appeal, you could consider IDDT, a charity who redistributes in-date diabetes medicines etc to developing countries
We are always very grateful for the donations of unwanted, in-date and unused insulin and other diabetes supplies, such as needles, lancets and test strips. This continues to be a...
www.iddt.org
(though you would have to hang on to them until covid19 settles down!)