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Question

Posted on: March 6 2013

How do I prepare: methylsalicylate 10% in Carbopolgel ad 100g?

When processing methylsalicylate in Carbopol gel, a clear gel is obtained, but methylsalicylate and/or water from the gel occurs.

Answer

I suspect that you obtain a clear gel with a Carbopol gel that contains isopropanol. A composition is found in the NF. In any case, there is one mentioned in my booklet "Galenic Formularium".