Packaging of 9.1mg menthol cough drops says i can take 1 drop every 2 hours. is this the maximum amount i can safely have?

A Drop In The Bucket: Maybe they're worried about too much sugar, unless they are sugarless.In that case, maybe worried about too much Eucalyptus(menthol)--tell that to the Indian chief in his sweat lodge!So,I really don't see a problem unless you're chewing them down by the dozens, which will defeat their rather meager purpose.All-in-all I'd say you could take a few more than that as long as you don't mind your breath