Comparative Pharmacokinetics and Bioavailability of Epimedin C in Rat after Intramuscular Administration of Epimedin C, a Combination of Four Flavonoid Glycosides and Purified Herba Epimedii Extract

Table 2

Stability data of epimedin C in rat plasma ().

Concentration (ng/mL)	⁢Accuracy (%) (mean SD)
	Short-term; Mean SD	Postterm; Mean SD	Long-term; Mean SD	Freeze-thaw; Mean SD
3	99.5 12.0	101.8 8.6	93.9 6.0	100.5 5.3
30	99.8 10.7	100.7 6.5	94.7 1.7	102.7 4.0
300	90.9 3.9	91.2 2.3	102.5 0.8	100.7 2.3
800	88.4 1.3	88.4 1.8	105.8 2.4	91.3 2.8