I went to donate and I was told no thanks because I'd spent too long up North. In the UK too long and I was not wanted because of the BSE risk. It would have been handy because they do it where I work, I could do it over lunch or just walk down if I had some free time.Your meds will probably preclude you, my epilepsy medication means I can’t donate.
BSE seems mad quaint these days now that I'm thinking about it.