Strepsils - Intensive Sugar Free Orange Flurbiprofen 8.75mg Lozenges (16). The ingredient which makes this medicine work is called flurbiprofen.. Flurbiprofen belongs to a group of medicines called non-steroidal anti-inflammatory drugs (NSAIDs), which help reduce inflammation (swelling) and pain.. Strepsils Intensive Lozenges help relieve the symptoms of sore throats, such as soreness, pain and swelling.
