粘漿剤	0	0.0% nikk, gg5 (redir to 漿剤)
粘漿薬	0	0.0% 南山堂医学大辞典, マグローヒル科学技術用語大辞典, 日外35万語科学技術用語大辞典 (all on sakura-paris)
漿剤	0	0.0% daijs, gg5, nikk (redir to 粘漿剤)


wiki
Mucilage is a thick gluey substance produced by nearly all plants and some microorganisms. 
...
Mucilage is edible. It is used in medicine as it relieves irritation of mucous membranes by forming a protective film.


daijs: アラビアゴム・サレップ・でんぷんなど粘液質のものを水で溶かして、のり状にした薬液。 
so not really just mucillage but specifically when used as a medicine. 

南山堂医学大辞典 gives "demulcent" as a synonym. 日外25万語医学用語大辞典 defines it just as "demulcent"

wiki
A demulcent is a mucilaginous or oleaginous preparation that forms a soothing protective film over a mucous membrane