I love liquorice but it doesn't like me
and I'm not alone.
It is a *very* useful plant but it needs to be thought about for many folks, not just dished out as an, "Oh, and you'll take this." kind of thing.
I'm not surprised that it was useful in helping you to stop smoking, it probably quietly mimiced the edge of the rush from nicotine without the addictive qualities.
Hope it worked. Tobacco too is a useful plant but most modern 'tobaccos' are enhanced with so many additives and addiction enhancers that it's a chemical nightmare.
cheers,
Toddy