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SYNOVEX Primer®
Medication labelWhy this: Advisory · dailymed-animal
• For increased rate of weight gain in growing beef steers and heifers on pasture (stocker, feeder, and slaughter). • For increased rate of weight gain in growing beef steers and heifers in a dry lot.1 • This implant is not approved for repeated implantation (reimplantation) with this or any other cattle ear implant in growing beef steers and heifers on pasture or in a dry lot as safety and effectiveness have not been evaluated. Do not use in beef calves less than 2 months of age, dairy calves, and veal calves because effectiveness and safety have not been established. Do not use in animals intended for subsequent breeding, or in dairy cows. 1CVM Appendix III of GFI 191, August 27, 2020, https://www.fda.gov/animal-veterinary/new-animal-drugapplications/ classes-major-food-producing-animals-newanimal-drug-applications#beef
- generic_name
- trenbolone acetate and estradiol benzoate
- product_names
- trenbolone acetate and estradiol benzoate
- ndc
- 54771-6870, 54771-6870-1
- group
- drugs
- license
- us-gov-pd
- attribution
- Courtesy of the National Library of Medicine
- reviewed
- 2026-09-18
- language
- en