Lemsip Max Flu Lemon sachets contain paracetamol and pseudoephedrine HCl. They provide relief from headaches, fever, blocked nose, body aches & pains. Also includes sucrose and aspartame.Total contents of sachet 4.8g. What Do Lemsip Max Flu Lemon Sachets Treat? It treats fevers, headaches, body aches, blocked noses and sore throats. How Do You Take Lemsip Max Flu Lemon Sachets? Adults and adolescents aged 16 years and over should take one sachet every four to six hours as needed, but do not take more than four sachets in 24 hours. Empty the contents of the sachet into a cup. Add half a cup of hot (not boiling) water and stir to dissolve. Cautions Lemsip max flu should not be used during pregnacy. Phenylephrine has blood vessel constricting effects that could restrict blood supply to the placenta, or cause problems for women with a history of pre-eclampsia. Ask your doctor or pharmacist for advice on how to treat cold and flu symptoms during pregnancy. As with all medication, please read the patient information leaflet before taking lemsip max flu lemon sachets. Keep all medication out of sight and reach of children.