It has been in use since the 1950s and is available via prescription and over-the-counter ... veterinarian can grab and use as needed. Oral rinse. Chlorhexidine is effective against most bacteria ...

Each of these requires a different length of treatment. Unlike over-the-counter (OTC), standard mouthwash, chlorhexidine is used only for up to four weeks to avoid staining teeth. Mouthwashes that ...