To begin with, chew one piece of gum whenever you have the urge to smoke (you should start with between 8 and 12 pieces a day). Do not exceed 20 gums in one day.

刚开始的时候，当您有想抽烟的感觉时，慢慢咀嚼一粒口香糖（一天大概8至12粒）。每日不要超过20粒。

youdao

Not only does it control 19% of the world market and a quarter of the American one, but 12 of its 14 gum and sweet brands claim health benefits.

ECONOMIST: Medical confectionery