Answer
Other antiseptics should not be used simultaneously with or immediately after Covonia Medicated Sore Throat Lemon lozenges because possible interference may cause opposite action or inactivation.
Sources for this answer
- Covonia Medicated Sore Throat 5mg/1mg Lozenges Lemon FlavourThornton & Ross Ltd · emc · SmPC §4.5 Interaction with other medicinal products · Version 5Document updated
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