TABLE 5.

Cumulative dissolution rates of tetramethylpyrazine, ferulic acid, nodakenin, and isoimperatorin (n = 3, −x ± S).

Times (min)	Powder group (ng/ml)				Pill group (ng/ml)
	Tetramethylpyrazine	Ferulic acid	Nodakenin	Isoimperatorin	Tetramethylpyrazine	Ferulic acid	Nodakenin	Isoimperatorin
2	0.89 ± 0.07	29.08 ± 1.77	44.64 ± 1.96	0.14 ± 0.00	0.08 ± 0.00	1.69 ± 0. 52	3.34 ± 1.34	0.11 ± 0.02
5	0.96 ± 0.18	40.00 ± 0.69	48.01 ± 1.30	0.17 ± 0.00	0.08 ± 0.01	2.19 ± 0.30	4.33 ± 1.49	0.12 ± 0.02
15	1.05 ± 0.19	43.31 ± 2.65	48.72 ± 0.52	0.16 ± 0.01	0.24 ± 0.11	6.79 ± 0.86	8.06 ± 2.64	0.13 ± 0.04
30	1.10 ± 0.17	43.52 ± 3.90	49.08 ± 1.71	0.15 ± 0.02	0.26 ± 0.03	12.12 ± 2.43	11.97 ± 3.11	0.14 ± 0.04
45	0.94 ± 0.02	42.26 ± 0.60	49.01 ± 0.27	0.16 ± 0.01	0.29 ± 0.05	17.51 ± 2.25	14.68 ± 4.76	0.14 ± 0.01
60	0.91 ± 0.06	40.81 ± 3.83	48.02 ± 1.22	0.18 ± 0.03	0.33 ± 0.00	22.18 ± 0.84	22.22 ± 3.04	0.15 ± 0.02
90	0.90 ± 0.04	42.00 ± 0.23	49.21 ± 1.61	0.17 ± 0.02	0.47 ± 0.14	24.92 ± 2.35	26.96 ± 4.62	0.13 ± 0.01
120	1.03 ± 0.22	48.02 ± 1.92	49.85 ± 1.34	0.22 ± 0.04	0.45 ± 0.00	35.31 ± 2.96	35.34 ± 0.56	0.14 ± 0.00
150	1.08 ± 0.15	43.37 ± 1.00	49.94 ± 1.24	0.13 ± 0.01	0.48 ± 0.01	36.83 ± 2.53	38.43 ± 3.82	0.14 ± 0.00
180	1.08 ± 0.17	46.41 ± 3.00	50.02 ± 0.80	0.18 ± 0.01	0.51 ± 0.01	42.07 ± 0.29	41.65 ± 3.04	0.15 ± 0.00
210	0.98 ± 0.02	45.96 ± 3.50	46.89 ± 4.23	0.16 ± 0.01	0.54 ± 0.01	47.88 ± 4.01	42.73 ± 3.97	0.15 ± 0.00
240	1.01 ± 0.05	55.60 ± 1.35	50.62 ± 1.24	0.17 ± 0.02	0.53 ± 0.05	52.64 ± 3.97	45.76 ± 2.68	0.14 ± 0.02