Estradiol and Testosterone
Synovex C is a veterinary hormone implant used in beef cattle to promote growth and improve feed efficiency. It contains naturally-occurring hormones that stimulate weight gain when implanted in the ear. This medication is specifically formulated for use in cows and heifers.
Synovex C is a veterinary growth-promoting implant containing estradiol and progesterone, used in beef cattle.
Key facts at a glance
- RxNorm
- 1648170
- Generic
- Synovex C
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Synovex C is indicated for use in beef cows and heifers to increase the rate of weight gain and improve feed efficiency. It is administered as a subcutaneous implant in the ear of cattle.
Synovex C contains natural hormones (estradiol benzoate and progesterone) that are slowly released from the implant. These hormones act as an anabolic agent, promoting muscle growth and improving nutrient utilization in cattle, leading to increased weight gain.
Synovex C is a prescription veterinary medication that must be administered by or under the supervision of a licensed veterinarian. Implants are placed in the middle third of the ear. Cattle must not be slaughtered within a specified withdrawal period before slaughter to ensure no residue remains in the meat.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 9, 2026. · Read our editorial policy