An inhibitor of hGIIA sPLA2 (IC50 = 9 nM), as well as mouse GIIA (mGIIA), hGIIE, mGIIE, hGX, and mGX PLA2s, but poorly inhibits other PLA2 enzymes; inhibits serum sPLA2 activity in transgenic mice expressing human sPLA2 when given either intravenously or orally