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Altreno Oral contains a synthetic form of progesterone called Altrenogest.

Given daily Altreno Oral reliably prevents mares from coming into heat or oestrus.

When use of Altreno Oral is discontinued, mares will return to oestrus with 4 to 5 days.

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My Vet must have a valid prescription from your local vet for our licensed veterinarian before we can dispense it.

We cannot prescribe medication for your pet as our veterinarian has not personally examined your pet, however we can dispense the medication.

To place your order, simply add this item to your cart and send your completed and signed prescription to My Vet, Unit 11, 16 Paerangi Place,Tauriko,Tauranga 3171.

If your order is urgent you may fax your prescription to 07 9292864 or email it to and then within 7 days post the original to My Vet, .Unit 11, 16 Paerangi Place,Tauriko,Tauranga 3171

Once received, your order will be despatched to you.We are unable to accept returns of RVM (Restricted Veterinary Medicines)/Prescription items

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Administer Altreno Oral daily for:

Induction of ovulatory oestrus in mares that are observed to have some follicle activity early in the breeding season.

Induce cyclical ovarian activity in mares that are observed to have some follicle activity early in the breeding season.

Suppression of oestrus in mares with normal cycles.

Controlling the breeding cycle of the mare.

Administer Altreno Oral daily shortly after ovulation to inseminated mares up to the 120th day of gestation for mares prone to aborting or at risk of early embryonic death

Dosage and Administration

For oral administration administer 1 ml per 50kg bodyweight of Altreno Oral, which is equivalent to 0.044mg Altrenogest per kg daily by mixing with feed at a single feeding per day or administer directly into the mouth with a syringe or dosing gun.

Additional Information

Additional Information

Ingredients 2.2mg/ml Altrenogest
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