Table 4.

The amount and cost of unused medications upon admission (n=95)

Therapeutic class	Number of unused pills, n (%)	Cost (US$)
A (Alimentary tract and metabolism)	2819 (47.4)	599.03
N (Nervous system)	1912 (32.2)	575.96
C (Cardiovascular system)	154 (2.6)	63.37
M (Musculoskeletal system)	62 (1.0)	30.62
J (Anti-infective agents for systemic use)	20 (0.3)	10.37
G (Genitourinary system and sex hormone)	72 (1.2)	6.43
D (Dermatological)	32 (0.5)	4.47
R (Respiratory system)	75 (1.3)	4.40
H (Systemic hormonal preparations)	0	0
B (Blood and blood-forming organs)	0	0
Others	800 (13.5)	416.70
Total	5946 (100.0)	1711.35