Betadine Concentrated Sore Throat Gargle 15ml is a concentrated anti-viral and anti-bacterial formula used as an aid in the treatment of sore throats. This gargle must be diluted before use. A convenient measure is included inside each pack to help ensure correct dosage. Kills most bacteria and viruses implicated in sore throats within 30 seconds and may be used as an aid in the treatment of an infected sore throat.