Strepsils lozenges contain an effective combination of 2 antibacterial agents to help kill the bacteria which can cause sore throats and mouth infections. Strepsils lozenges for fast, soothing and effective relief from discomfort. Directions: Strepsils Lozenges are suitable for adults and children. Dissolve one lozenge slowly in the mouth every 2 to 3 hours. If symptoms persist, consult your doctor.