Research Article

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

Figure 2

Chemical structure of epimedin A, epimedin B, epimedin C, icariin, and naringin (IS).