can i take mucinex on an empty stomach

Mucinex (guaifenesin) can be taken with or without food, so it is safe to take it on an empty stomach. However, if Mucinex causes stomach upset, taking it with food or milk may help reduce this side effect. It is also recommended to take Mucinex with a full glass of water to assist in thinning mucus and clearing congestion more effectively. In summary, taking Mucinex on an empty stomach is generally okay, but if any stomach discomfort occurs, try taking it with food.