Abstract: A one-time use package of mouthwash comprising a disposable container in the form of an open top cup containing a single portion quantity of mouthwash for use full strength as an oral rinse followed by disposal of cup and contents. The top opening of the cup is hermetically sealed by disc which preferably includes a pull-tab for facilitating its removal. The mouthwash contents contain an appreciable concentration of alcohol in aqueous solution and the cup and disc seal are formed of materials compatible with the contents. After emptying its content of mouthwash, the cup may be filled with water for a follow-up rinse with water if desired.