Cof Q Cough Lozenges is used to treat dry cough associated with cold/flu, allergies, and throat irritants. It contains Dextromethorphan and Amylmetacresol which blocks the cough centre's action in the brain and also stops bacterial growth. Thus, it can provide relief from sore throat, which is usually accompanied by a dry cough. It may cause common side effects such as dizziness, drowsiness, sleepiness, confusion, nausea, agitation, and sore tongue. Before taking this medicine, you should tell your doctor if you are allergic to any of its components or if you are pregnant/breastfeeding, and about all the medications you are taking and pre-existing medical conditions.