Trescof Guaifenesin + Dextromethorphan + Menthol Diphenhydramine Hydrochloride
ModerateWhen you take guaifenesin with dextromethorphan and menthol together with diphenhydramine, you might experience systemic reactions.
These medicines are often taken together with some care. Your doctor may change a dose, space them apart or check on you more often. Make sure your doctor and pharmacist know you take both.