Potters crystallised blackcurrant glycerine pastilles with real blackcurrant juice are formulated to offer a soothing pleasant taste for the soothing relief of sore throat with a blackcurrant flavour for you to enjoyas an alternative doctors can also prescribe medication that can assist with flu please visit our online doctor service to proceed with an influenza consultation our uk registered gp will review your details and if appropriate can provide a prescription for the main treatme