A 24-year-old college student asks you for a recommendation…
A 24-year-old college student asks you for a recommendation for “cold” symptoms. They take no prescription or OTC medications or supplements and have no medication allergies, but they do have a past medical history of a broken arm and paroxysmal tachycardia (episodic rapid heart rate that begins and ends suddenly). Which of the following nonprescription medications would be important for this student to avoid in OTC cold products?