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Question

Posted on: July 18 2016

Incompatibility between erythromycin and Lanette SX in Beard balm?

Formula for Beard Balm: Prednisolone 1%, erythromycin 4%, Lanette SX 1.5%, Oleum medicinalis 1.5%, Aqua ad 100mL Is there no incompatibility between erythromycin and Lanette SX and how can it best be solved?

Answer

In A list of incompatibilities between active ingredients and the classic Dermatics bases I find that erythromycin is compatible with both hydrophilic anionic cream and image base.