Figure 1

Multiple peaks of mean concentration were shown in whole plasma (dash line with triangular markers) and in blood (solid line with circular markers) with the radioactivity (ng equivalents per ml), as well as PK profile of unchanged DHA in plasma (solid line) following a single 3 mg/20 μCi/kg intravenous injection of [¹⁴C]-dihydroartemisinin (14C-DHA) in rats (n = 6).