The mechanism of action by which Apsol accelerates healing of aphthous ulcers is unknown. In vitro studies have demonstrated Apsol to be a potent inhibitor of the formation and release of inflammatory mediators (histamine and leukotrienes) from mast cells, neutrophils and mononuclear cells. Given orally to animals, Apsol has demonstrated anti-allergic and anti-inflammatory activities and has been shown to suppress both immediate and delayed type hypersensitivity reactions. The relevance of these activities of Apsol to its effects on aphthous ulcers has not been established.


Apsol is used for the treatment of aphthous ulcers in people with normal immune system.

Trade Name Apsol
Generic Amlexanox
Other Names Amlexanox, Amlexanoxo, Amlexanoxum, Amoxanox
Weight 50mg/gm
Formula C16H14N2O4
Weight Average: 298.2934
Monoisotopic: 298.095356946
Therapeutic Class Drugs for Aphthous ulcer
Manufacturer Square Pharmaceuticals Ltd
Available Country Bangladesh
Last Updated: June 23, 2021 at 11:16 am


Apsol dosage

Adults (over 18 years of age): Apply the paste as soon as possible after noticing the symptoms of an aphthous ulcer. Continue to use the paste four times daily, preferably following oral hygiene after breakfast, lunch, dinner, and at bedtime. Dry the ulcer(s) by gently patting it with a soft, clean cloth. Wash hands before applying. Moisten the tip of the index finger & squeeze a dab of paste approximately ¼ inch (0.5 cm) on to the finger tip. Gently dab the paste on to each ulcer. Repeat the process if more than one ulcer are present. Wash hands after application. Use the paste until the ulcer heals. If significant healing or pain relief has not occurred in 10 days, consultation with the physician is required.

Side Effects

The most common side effects are transient pain, stinging and/or burning at the site of application. The less frequent side effects are contact mucositis, nausea, and diarrhea.


Wash hands immediately after applying Apsol oral paste directly to ulcers with thefinger tips. Wash eyes promptly if they should come in contact with the paste. In the event that a rash or contact mucositis occurs, discontinue use.

Half Life

Elimination half-life is 3.5 ± 1.1 hours.

Pregnancy & Breastfeeding use

Pregnancy category B. No adverse fetal effects were observed during teratological studies on animals, but there are no adequate and well-controlled studies in pregnant women. So this drug should be used during pregnancy only if clearly needed.

Lactation: Apsol was found in the milk of lactating rats; therefore, caution should be exercised when administering Apsol oral paste to a nursing woman.


Apsol oral paste is contraindicated in patients with known hypersensitivity to Apsol or other ingredients in the formulation.

Special Warning

Safety and effectiveness of Apsol oral paste in pediatric patients have not been established.

Acute Overdose

Ingestion of a full tube would result in systemic exposure below the maximum nontoxic dose of Apsol in animals. Gastrointestinal upset such as diarrhea and vomiting could result from an overdose.

Storage Condition

Store in a cool & dry place. Protect from light. Keep out of reach of the children

Apsol contains Amlexanox see full prescribing information from innovator Monograph