Table 1.

Quantities of most commonly returned medications.

	Medication	Quantity of Containers	Percentage of All Containers Returned
1	Acetaminophen/hydrocodone	110	4.4
2	Ibuprofen	73	2.9
3	Tramadol	44	1.8
4	Acetaminophen/codeine	42	1.7
5	Naproxen	42	1.7
6	Prednisone	41	1.7
7	Amoxicillin	37	1.5
8	Omeprazole	37	1.5
9	Levothyroxine	35	1.4
10	Aspirin	32	1.3
11	Acetaminophen/propoxyphene	27	1.1
12	Cyclobenzaprine	27	1.1
13	Cephalexin	26	1.1
14	Lisinopril	26	1.1
15	Warfarin	26	1.1