Antiseptic
Last reviewed July 2026
Who is this for?
Dequalinium chloride is an antiseptic drug that kills bacteria and fungi in the mouth and throat by destroying their cell walls, helping to clear infections in those areas.
Disrupts microbial cell membranes by intercalating into lipid bilayers and causing leakage of cellular contents, while also inhibiting bacterial and fungal protein synthesis through ribosomal binding. Exhibits broad-spectrum antimicrobial activity against gram-positive and gram-negative bacteria as well as Candida species.
Available Over The Counter
Get this from any pharmacy or chemist: no prescription needed.
Explore this drug
If you forget to take a lozenge, simply take one when you remember. Since this drug is used as needed for symptoms, there is no strict schedule to worry about, just do not take more than 8 lozenges in one day.
Only buy Dequadin lozenges from licensed pharmacies, avoiding roadside sellers or markets where drugs may be expired or fake. If your sore throat or mouth infection does not improve after 5 days of use, see a doctor as you may need a stronger treatment. Do not give lozenges to small children unsupervised.
Avoid using other antiseptic mouthwashes or throat sprays at the same time as it may cause irritation. If you are taking any antibiotic for a mouth or throat infection, let your pharmacist know so they can advise you properly. Alcohol is not known to interact directly, but it can irritate an already sore throat.
Check your specific combination
Is it safe to take Dequalinium with your other drugs?
If you are pregnant or breastfeeding, consult your doctor or pharmacist before using dequalinium chloride lozenges, as there is not enough data to confirm it is completely safe.
Store in a cool, dry place away from direct sunlight and heat. Nigerian weather can be very hot, so avoid leaving it in your car or near a window. Keep the pack tightly closed to protect from humidity and always keep it out of reach of children.
For information only: not medical advice. Always talk to a doctor or pharmacist before changing your medication.
Names this drug is sold under, especially in Nigerian and West African pharmacies
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Counterfeit Drug Warning
Fake drugs are a serious problem in Nigeria. Always buy from a registered pharmacy. If the packaging looks different from what is described above, do not use it.