Does anyone know if you are allowed to give blood whilst receiving Xolair therapy? I have been off pred for two weeks now (bit of a record for me this year) so I was going to donate next week as the blood van will be at work. I asked my consultant about it but he doesn't know if you can or not and when I asked the blood centre they seemed confused too. I am keen to as O negative and so I am always in demand and my sister received multiple transfusions earlier in the year so would be good to help replenish supplies.
I have given blood before in the past (although generally either on pred or been in a malarial zone) but not since starting Xolair.