
Over-the-counter (OTC) sinus and pain drugs combining phenylephrine and acetaminophen-including Tylenol Sinus, Sudafed PE Sinus, Benadryl Allergy Plus Sinus, and Excedrin Sinus Headache-might cause serious side effects such as high blood pressure, dizziness, and tremors, according to a new study published in the New England Journal of Medicine.



