Onset of action (cream): Within 4 weeks Absorption: Cream: ~3% to 5% penetrates stratum corneum; up to 10% found in epidermis and dermis; 4% systemic. Metabolism: Negligible after topical application; some beta-oxidation to shorter chain dicarboxylic acids. Half-life elimination: Topical: Healthy subjects: 12 hours. Excretion: Urine (primarily as unchanged drug).
禁忌症
Contraindicated for individuals with an allergy to propylene glycol.
懷孕分類
The amount of azelaic acid available systemically following topical administration is minimal (<4%); maternal use is not expected to result in fetal exposure.
哺乳分類
It is not known if azelaic acid is present in breast milk.
副作用
During the initial stages of use, occasional localized skin irritation (such as redness, peeling, itching, or a burning sensation) may occur. However, these symptoms typically subside gradually as the treatment continues.
劑量和給藥方法
1. Cleanse Thoroughly: Before use, the skin should be thoroughly cleaned. You may use water or a mild skin cleanser for this purpose. 2. Application: Apply the product twice daily (morning and evening). It should be applied as a "spot treatment" directly onto the affected areas. 3. Treatment Duration: Significant improvement in symptoms is typically observed after about four weeks of regular use. Depending on the actual condition of the symptoms, you may continue use until the area is fully healed. 4. Handling Irritation: If localized skin irritation occurs, reduce the frequency of application to once per day until the irritation subsides. If the irritation persists, discontinue use.
小兒調整劑量
Children ?12 years and Adolescents: Apply a thin film to affected area(s) twice daily, in the morning and evening; may reduce to once daily if persistent skin irritation occurs
腎功能調整劑量
There are no dosage adjustments provided in the manufacturer's labeling. However, dosage adjustment unlikely due to low systemic absorption.
肝功能調整劑量
There are no dosage adjustments provided in the manufacturer's labeling. However, dosage adjustment unlikely due to low systemic absorption.
安定性
Store at room temperature. Avoid direct sunlight and moisture, and keep out of the reach of children.