Squaric Acid

Squaric acid is a cyclic dicarboxylic acid with the chemical formula C4H2O4. It is used in medicine primarily as a sensitizing agent in the treatment of certain skin conditions, particularly allergic contact dermatitis.

Indications

-Treatment of allergic contact dermatitis -Used in patch testing to diagnose contact allergies

Dosage

The dosage and application method of squaric acid for patch testing are specific to the individual patient and the condition being treated. Typically, it is applied in very dilute concentrations to test for allergic reactions.

Contra-Indications

-Hypersensitivity to squaric acid or any component of the formulation -Active skin infections in the area of application

Special Precautions

-Use with caution in children and elderly patients due to potential increased sensitivity. -Avoid contact with eyes, mucous membranes, and broken skin. -Use appropriate concentrations and techniques for patch testing to avoid severe allergic reactions.

Side Effects

-Common side effects may include skin irritation, redness, itching, and burning sensation at the application site. -Severe reactions such as blistering or ulceration can occur in hypersensitive individuals.

Drug Interactions

No significant drug interactions have been reported with squaric acid used in dermatological applications.