Problem to be solved: to provide a medicine holder for a drainage portion capable of cleaning and deodorizing a drain while reducing the frequency of replacement of the drug.Solution: a retaining agent for the drainage portion including the pulling hook portion 10, the cover portion 21 fixed to the pulling section 10 and having a cover portion through hole 25 and a substantially closed space located between the bottom portion 23 having the bottom through hole 25 and the bottom portion 23.Diagram
展开▼
