Can I take ZMA tablets in the run up to rhinoplasty & during healing ?

For the last 6 months I've taken daily ZMA tablets consisting of 450mg Magnesium Aspartate, 30mg Zinc Monomethionine, and 12mg of Vitamin B6. I used to suffer from disrupted sleep but since taking these I sleep better and for longer than I have done in years. I'm scheduled to have rhinoplasty in December 2015 and was wondering, would there be any ill effects to me continuing with the supplement up until the op (and possibly during healing?) thanks in advance, Ed