Eazi-Breed CidrMedically reviewed by WellAlly Editorial Team·Last reviewed August 31, 2026·[Editorial policy](https://wellally.tech/editorial-policy)
## Key facts at a glance
RxNorm1251721GenericEazi-Breed CidrClassbrand-nameBrands—AvailabilityrxLactationunknownRoutes—Forms—RegionsUS, EU, CN, JPMonitoring—

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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.


Estrus synchronization in cattle, sheep, and other livestock; used in breeding programs, artificial insemination protocols, and reproductive management to coordinate heat cycles for more efficient breeding schedules.


The device is inserted into the vagina where it releases progesterone steadily over a period of typically 5-14 days, depending on the protocol. By maintaining elevated progesterone levels, it suppresses heat until the device is removed, at which point synchronized estrus typically occurs within a predictable timeframe.


For veterinary use only by trained professionals. Proper hygiene during insertion is essential to prevent infection. Should be used as part of a complete breeding management protocol under veterinary guidance. Not for use in humans. Individual animal responses may vary.


## Official drug label

- DailyMed (FDA) — full prescribing information
- MedlinePlus — consumer drug information


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Medically reviewed by WellAlly Editorial Team Last reviewed August 31, 2026. · Read our editorial policy