FDA warns of importing trilostane According to DVM Newsmagazine, the U.S.

Food and Drug Administration (FDA) sent an open letter to veterinarians announcing the approval of a new drug to treat Cushing's disease and warning against continued importation or compounding of its active ingredient. Vetoryl, distributed by Dechra, recently was approved by the FDA to treat pituitary-dependent and adrenal-dependent hyperadrenocorticism (Cushing's disease) in dogs. It is the only FDA-approved animal drug containing trilostane as its active ingredient, notes the FDA.

The agency adds that, now that Vetoryl is approved for use and available to veterinarians, they should cease imports of trilostane and refrain from compounding it, DVM Newsmagazine reported. In cases where specific patients require greater strengths of trilostane than Vetoryl offers, FDA says it can be legally compounded, but only using FDA-approved Vetoryl as the starting material.