Amlex Oral Paste is a medicine used to treat mouth ulcers (aphthous ulcers) in adults. It is applied directly to the sore inside the mouth, where it forms a protective layer and helps the ulcer heal faster. It helps calm local inflammation, relieve discomfort, and speed up healing.
Amlex Oral Paste should be applied as soon as possible after the first signs of a mouth ulcer appear. Use clean, dry fingers to apply a small amount of the medicine directly onto the ulcer, usually after meals and after brushing your teeth. Avoid eating or drinking for at least one hour after applying the medicine so it can work effectively.
Some may feel mild stinging, burning, or pain at the site of application when Amlex Oral Paste is first applied. These effects are usually temporary and resolve on their own. If you develop a rash, worsening mouth irritation, or any unusual reaction, stop using it and consult your doctor.
Do not use Amlex Oral Paste if you are allergic to amlexanox or any of its ingredients. It is not recommended for children under 12 years of age. People with liver or kidney problems should use this medicine cautiously and only under medical advice. Pregnant and breastfeeding women should consult their doctor before using this medicine.
Mouth ulcers are small, painful sores on the inner lips, gums, tongue, roof of the mouth, or throat that may interfere with eating, drinking, and even talking. Amlex Oral Paste helps by forming a coating over the sores and providing relief from the pain, discomfort, and other symptoms of inflammation, such as redness, swelling, or a burning sensation due to mouth ulcers. This makes it easier for you to go about your daily activities.
Side effects of Amlex Oral Paste
Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them
Common side effects of Amlex
Application site pain
How to use Amlex Oral Paste
This medicine is for external use only. Use it in the dose and duration as advised by your doctor. Check the label for directions before use.
How Amlex Oral Paste works
Amlex Oral Paste is an anti-inflammatory and anti-allergic medicine used for recurrent mouth ulcers (aphthous ulcers). It works by blocking the release of inflammatory substances such as histamine and leukotrienes from mast cells. This reduces swelling, pain, and redness at the ulcer site, helping the ulcer heal faster and making eating and speaking more comfortable.
Safety advice
Alcohol
No interaction found/established
Pregnancy
CONSULT YOUR DOCTOR
The safety of Amlex Oral Paste during pregnancy has not been established. There are no adequate and well-controlled studies in pregnant women, and animal data on reproductive toxicity are insufficient. Your doctor will weigh the benefits and any potential risks before prescribing.
Breast feeding
CONSULT YOUR DOCTOR
Amlex Oral Paste may be unsafe to use during breastfeeding. Limited human data suggests that the drug may pass into the breastmilk and harm the baby. It should be used only if the expected benefit outweighs the potential risk. Please consult your doctor.
Driving
No interaction found/established
Kidney
No interaction found/established
Liver
No interaction found/established
What if you forget to take Amlex Oral Paste?
If you miss a dose of Amlex Oral Paste, apply it as soon as you remember. However, if it is almost time for your next dose, skip the missed dose and resume your regular schedule.
All substitutes
For informational purposes only. Consult a doctor before taking any medicines.
No substitutes found for this medicine
Quick tips
Apply Amlex Oral Paste as soon as you notice a mouth ulcer, ideally within 48 hours of symptoms, for best results.
Use clean, dry hands and gently spread a small amount of paste directly on the ulcer. Wash your hands immediately afterward.
Apply it exactly as instructed by the doctor, usually after meals and after brushing your teeth.
Do not eat or drink for at least one hour after applying the medicine to allow it to work properly.
Stop using the medicine if the ulcer has not improved or if pain has not reduced after 7–10 days, and consult your doctor for advice.
Fact Box
Chemical Class
Chromeno [2,3- b] pyridine- 5- ones
Habit Forming
No
Therapeutic Class
GASTRO INTESTINAL
Action Class
Selective TBK1 and IKKε Inhibitor
Patient concerns
Mouth ulcers Mouth ulcers
Dr. Shubhra Chandan Pradhan
ENT
It can be vitamin deficiency, lichen planus, traumatic ulcer. Consult a ENT specialist to check throat
No, you should not swallow Amlex Oral Paste. Apply a thin layer of Amlex Oral Paste to the affected area in the mouth using a cotton swab.
How long does it take Amlex Oral Paste to work?
You can see an improvement in your ulcers within 7 days. However, your doctor will determine the exact dose and duration of your treatment, depending on your specific condition. Follow your doctor’s instructions to get the maximum benefit of Amlex Oral Paste. If you do not find a considerable improvement within the prescribed duration, consult your doctor.
What foods are bad for mouth ulcers?
Avoid spicy foods, acidic fruit drinks, and very salty foods (such as crisps), which can make the pain and sting worse.
What should I keep in mind while using Amlex Oral Paste?
Along with using Amlex Oral Paste, use a soft toothbrush, avoid eating and drinking immediately after applying this medicine, avoid putting dentures or braces back in the mouth for half an hour after applying the gel in your mouth, and stop smoking completely.
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References
Amlexanox (Summary of Product Characteristics). Dublin 13, Ireland: Mylan IRE Healthcare Limited; 2019. [Accessed 25 Sept. 2025] (online) Available from: