Strepsils strefen honey lemon lozenges gives you fast long lasting relief from painful sore throats it can be used for adults and children 12 years and above for a maximum span of 3 days how it works these strepsils contain the active ingredient flurbiprofen which acts as an anti inflammatory and offers long lasting relief from inflammation and pain associated with a sore throat benefits effective for swollen and sore throat provides fast and long lasting relief from sore throat symptoms