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(altrenogest) 2.2mg/mL

Altresyn® is indicated for the suppression of estrus in mares. Suppresion of estrus allows for a predictable occurrence of estrus following drug withdrawal.


  • Regular cyclicity during the transition from winter anestrus to the physiological breeding season
  • Management of prolonged estrus conditions
  • Scheduled breeding during the physiological breeding season

Altresyn® is a registered trademark of Laboratoire Biosem SAS.

Available Pack Sizes

Product Code Unit Size Case
1ALT005 1000mL 12

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*Rx. Federal law restricts this product to use by or on the order of a licensed veterinarian

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For complete product information, including contra-indications, see the datasheet.

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Phone: 1 888 524 6332