Table 1

Excretion of radioactivity after intravenous administration of [¹⁴C]AMS (11 mg/kg) to male F-344 rats (n = 4)

End of Collection Period	Cumulative Percentage of Dose Recovered in
End of Collection Period	Urine	Feces	Breath Volatiles	CO₂	Total
h
6	34.1 ± 3.9	0.05 ± 0.07	2.01 ± 0.76	0.007 ± 0.003	36.1 ± 4.4
12	53.0 ± 7.3		2.08 ± 0.77	0.010 ± 0.004	55.1 ± 8.0
24	76.4 ± 2.1	1.20 ± 0.33	2.14 ± 0.78	0.013 ± 0.003	79.8 ± 2.7
48	84.9 ± 1.6	1.78 ± 0.72	2.15 ± 0.78	0.020 ± 0.009	88.9 ± 0.7
72^1-a	86.2 ± 1.4	1.88 ± 0.73	2.16 ± 0.78	0.024 ± 0.008	90.3 ± 0.4