(1) Kev nqus ncaj qha rau hauv txoj hnyuv tom qab tawg, tsis muaj txheej txheem xaus, ua kom sai;
(2) cov ntsiab lus raug;
(3) siab bioavailability, txo kev noj cov neeg mob;
(4) cov tshuaj muaj qhov ruaj khov zoo thiab tsis yooj yim rau nqus cov dej noo;
(5) zoo kaw, npog cov ntxhiab tsw phem ntawm cov tshuaj;
(6) tswj hwm yooj yim, zoo nkauj tsos thiab nrov.
Ntxiv rau cov yam ntxwv saum toj no, cov tshuaj ntsiav muag tseem muaj cov yam ntxwv ib qho nyuaj tsiav tshuaj, xws li yooj yim, siv tus nqi siab, zoo ruaj khov, ua kom qeeb, thiab lwm yam.
