A highly purified version of a Chinese drug derived from cucumbers will undergo tests on humans to determine if it is safe to take for the treatment of AIDS, officials said.

The Food and Drug Administration has approved human testing of the drug called GLQ223, the only agent shown to kill AIDS-infected cells selectively in the test tube, officials said Thursday.GLQ223 is a highly purified version of a drug, made from a type of cucumber that is used in China to induce abortions.