abstract:Celadrin (cetylated fatty acids) is a proprietary blend of esterified fatty acids carbons and also the name of a topical analgesic drug that contains this cream and is used for osteoarthritis. The only active ingredient in this over-the-counter drug formulation is menthol,Retrieved 2013-03-02 Prescribing monograph for Celadrin (menthol) however celadrin is mentioned on a specific brand as functional ingredient.