Salicylic Acid
Indications
6% Salicylic Acid: This topical preparations treat the following common scaly conditions:
- Chronic atopic dermatitis
- Lichen simplex
- Psoriasis
- Seborrhoeic dermatitis
- Ichthiosis
12% Salicylic Acid: This topical preparations treat the following common scaly conditions:
- Warts (small excessive growths of skin caused by a type of virus. Warts often occur on the fingers or on the back of the hands).
- Verruca (occurs only on the sole of the feet and can be painful. It often looks like a small white ring of skin with a black dot in the centre).
- Corns and Calluses (are hard, thick pads of skin caused by pressure and friction. They usually occur on the feet due to poorly fitting shoes and can occur on the hands).
Pharmacology
Salicylic Acid has a potent keratolytic & a slight antiseptic action when applied topically to the skin. In low concentrations, the drug has keratoplastic activity (correction of abnormal keratinization) & in higher concentrations, the drug has keratolytic activity (causes peeling of skin). Salicylic Acid softens & destroys the stratum corneum by increasing endogenous hydration (water concentration), probably because of decreased pH, which causes the cornified epithelium (horny layer of the skin) to swell, soften, & then desquamate. Necrosis of normal skin has been associated with overuse of the drug. At high concentrations, Salicylic Acid has a caustic effect. Moisture is essential for Salicylic Acid to exert its action on the skin and for maceration and desquamation of epidermal tissue to occur. The drug has weak antifungal & antibacterial activity.
Dosage And Administration
Apply to affected area once daily. Hydrate area for 5 minutes prior to application if possible. Occlude the area at night. Wash off in morning. Salicylic Acid is used in children over 2 years.
Interaction
Do not use other topical preparations on the treated area unless otherwise directed by your healthcare provider. They may interfere with treatment or increase skin irritation.
Contraindications
It should not be used in any patient known to be sensitive to Salicylic Acid or any other listed ingredients.
Side Effects
An allergic reaction (shortness of breath, closing of the throat, swelling of the lips, face or tongue or hives) or severe skin irritation.
Pregnancy And Lactation
Pregnancy Category C. If used by nursing mothers, it should not be used on the chest area to avoid accidental contamination of the child.
Precautions And Warnings
For external use only. Avoid contact with eyes and other mucous membranes.
Overdose Effects
An overdose of Salicylic Acid topical is unlikely to occur. If the medication has been ingested or an overdose is suspected, the patient needs to be hospitalized immediately.
Therapeutic Class
Topical salicylic preparation.
Storage Conditions
Do not store above 30°C. Keep away from light and out of the reach of children.