| 摘要 |
Provided is an external preparation containing (A) tranexamic acid or a salt thereof, (B) a saccharide, and (C) a compound represented by formula (I) or a salt thereof. (In formula (I), Ra indicates a C7-19 linear alkyl group or a group represented by –NRdRe, Rd and Re each independently indicate a hydrogen atom or optionally substituted alkyl group, Rb and Rc each independently indicate a hydrogen atom, optionally substituted alkyl group, or group represented by formula (II). Here, Rb and Rc may bond to each other to form a ring. Substituents are a hydroxyl group, carboxy group, alkyl group, or group represented by formula (III). In formula (II), Rf indicates a hydrogen atom or an alkyl group optionally substituted by a hydroxyl group. |
