Smoking "while" using nicotine lozenges?

Documents online say that it is dangerous to smoke while using nicotine lozenges. I’m planning to use them to cut down, esp. while at my parents’ place over the holidays, but ideally on a permanent basis. When they say it’s dangerous to smoke while using nicotine lozenges…does that mean that I shouldn’t have a cigarette while I’m sucking on a lozenge (or directly before or after)...or does it mean that, if I’m using lozenges a few times a day during a given week, I should not have any cigarettes at all at any time during that week? I think it’s the first, but maybe its the second…in which case I can’t use them b/c I’m not ready to quit completely?