Synovex Choice is a subcutaneous implant for steers fed in confinement for slaughter and heifers. Each implant delivers 100 mg trenbolone acetate and 14 mg estradiol benzoate to support on-label use in cattle. The 1 x 100-implant pack is organized in cartridges, with each implant composed of 4 pellets and 10 implants per cartridge. DIN 02247115; available as a non-prescription livestock health product in Canada, with prescription required in Quebec. A reliable choice for farms seeking vetted cattle health products aligned with label directions.