Topical corticosteroid compounding: effects on physicochemical stability and skin penetration rate

Area of Science:

• Pharmaceutical Sciences
• Dermatology

Background:

• Corticosteroid creams are widely used in dermatology.
• Compounding these creams with various additives is common practice.
• Understanding the compatibility of these mixtures is crucial for efficacy and safety.

Purpose of the Study:

• To evaluate the physical and chemical compatibility of four corticosteroid cream products with four commonly added chemicals.
• To assess the impact of compounding on micropreservative challenge status and in vitro skin penetration.
• To provide novel data for pharmacists and dermatologists regarding corticosteroid cream formulations.

Main Methods:

• Four corticosteroid cream products and four common chemical additives were selected.
• Compounded mixtures were stored under ambient conditions for 2 months.
• Evaluations included physical alteration, chemical stability, preservative efficacy testing, and in vitro skin penetration assays.

Main Results:

• Physical and chemical stability data were collected for all tested combinations.
• Micropreservative challenge status was assessed to ensure product integrity.
• In vitro skin penetration profiles were analyzed to understand formulation effects on drug delivery.

Conclusions:

• The study provides essential data on the compatibility of corticosteroid creams with common compounding agents.
• Results can guide pharmacists in preparing stable and effective topical corticosteroid formulations.
• This research contributes to improved dermatological treatment outcomes through optimized cream compounding.