Galpharm Max Strength Cold & Flu Blackcurrant Flavour Sachets Galpharm Max Strength Cold & Flu Blackcurrant Flavour Sachets relieve the symptoms of colds & flu including headache, aches & pains, sore throat, nasal congestion & feverishness. They contain two active ingredients: Paracetamol: A pain reliever that also helps reduce your temperature when you have a fever. Phenylephrine: A decongestant to reduce swelling in the passages of the nose to help you breathe more easily.