I would use poppers if I wanted to and would not feel I had broken my sobriety in any way whatsoever, I have no want to, but it would be no problem if I did. Doesn't the AA say that you are allowed to smoke and drink coffee so why would 'poppers' be any different? You are in AA not NA. But consult your sponsor or the Big Book if you are worried although I don't think the BB has a story "To the Popper Sniffer" lol.