Synovex Primer is a low-dose combination implant with 50 mg of trenbolone acetate (TBA) and 7 mg of estradiol benzoate. It is indicated for growing beef steers and heifers in a dry lot. Synovex® Primer™ is approved for increased rate of weight gain in growing beef steers and heifers in a dry lot. This implant is not approved for repeated implantation (reimplantation) with any other cattle ear implant in growing beef steers and heifers in a dry lot as safety and effectiveness have not been evaluated.
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