Can smoking reverse minoxidil?

Can smoking mitigate the effects of Minoxidil since min is a vasodilator and tobacco/nicotine is a vasoconstrictor? I know there was a study in Taiwan that showed hair loss was more common in smokers, though this was only with men who had a pack a day which most smokers don’t have. Also was told by a hair clinic doctor that smoking has no effect on hair loss.

There is no evidence that smoking reverses the effects of minoxidil. Minoxidil’s benefit is not from the vasodilation, but from a drug side effect.