Table 3.

Percent of Patients Double-Dipping on Acetaminophen-Containing Medicines

Base Product	% Indicating it is Safe to Take Max Dose of Base Product + Second Acetaminophen Product (below)				P Value
	Generic Arthritis Pain Reliever (1300 mg/dose)	Brand Name PM Pain Reliever (1000 mg/dose)	Brand Name Combination Pain Reliever (500 mg/dose)	Brand Name Combination Cold & Cough (650 mg/dose)
Brand Name Pain Reliever (500 mg per gelcap; 2 every 4–6 hours)	11.6	21.7	11.0	20.1	<0.0001
Brand Name Combination Sinus Congestion & Pain Reliever (325 mg per caplet; 2 every 4 hours)	12.6	21.3	11.5	12.1	<0.0001