A drug-introduced photo-crosslinked hyaluronic acidderived gel which is a photo-crosslinked hyaluronic acidgel into which a drug is introduced through a covalentbond, and has characteristics that are capable of extrudingfrom an injection device. The drug-introduced photo-cross-linkedhyaluronic acid derived gel is capable of extruding,for example, by an injection needle of 20 to 25 gauge witha pressure of 0.5 to 5 kg/cm2.
