The article, “Another Synch Option,” in the August issue of BEEF reported on Louisiana State University research that investigated the use in beef heifers of altrenogest (Regumate®/Matrix®), an oral, ovulation-control product only approved for use in mares and swine. The project by C.E. Ferguson and R.A. Godke evaluated the use of short-term exposure to the product in an estrous cycle synchronization protocol for beef heifers. BEEF reiterates that altrenogest is neither approved nor legal for any application in cattle.