

Other Variations
Regumate (Altrenogest)
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REGU-MATE (altrenogest) Oral Solution for Horses 2.2 mg altrenogest per mL (0.22%) is indicated to suppress estrus in mares. Suppression of estrus allows for a predictable occurrence of estrus following drug withdrawal with ovarian follicles 20 mm or greater. This facilitates the attainment of regular cyclicity during the transition from winter anestrus to the physiological breeding season. Suppression of estrus will also facilitate management of prolonged estrus conditions. Suppression of estrus may be used to facilitate scheduled breeding during the physiological breeding season.
REGU‑MATE® (altrenogest) provides reliable, predictable control over a mare’s reproductive cycle, helping reduce undesirable mood and behavioral changes.
- The only FDA‑approved altrenogest with more than 50 million doses sold
- Delivers safe, consistent control of the mare’s reproductive cycle
- Helps reduce moodiness and behavior changes associated with estrus
- 15‑day treatment regimen allows performance mares to compete at their best
- Strategic use helps align the mare’s cycle with performance schedules
- Easy to administer with the REGU‑MATE® dosing device
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At Rood & Riddle Veterinary Pharmacy we understand not all animals' needs and palates may be the same, which is why we are dedicated to helping you find the right medications for your patients or companion animals.





