gargle

synonym: mouthwash
https://doi.org/10.1351/goldbook.15189
Aqueous solution used for the prevention and treatment of mouth and throat infections.
Notes:
  1. May contain antiseptics, antibacterials, analgesics, and/or astringents.
  2. Usually diluted with water before use.
Source:
PAC, 2009, 81, 971. (Glossary of terms related to pharmaceutics (IUPAC Recommendations 2009)) on page 985 [Terms] [Paper]