Altren (Altrenogest) Oral Progestin Solution for Horses is used to suppress estrus in mares, aiding in the optimization of breeding schedules. It may also help reduce undesirable behavior and mood changes associated with estrus. Altren is given to horses orally and is available in either a 150 mL bottle or a 1,000 mL bottle. Altren is proudly made in the USA.How it Works

Altrenogest Solution 0.22% produces a progestational effect in mares and suppresses your mare's estrous (heat) cycle.

Special Precautions

Keep away from children and animals. Wear vinyl gloves when administering. People who should not administer Altren: Women who are or suspect being pregnant. Anyone with thrombophlebitis or thromboembolic disorders or with a history of these events. Anyone with cerebral-vascular or coronary-artery disease. Women with known or suspected carcinoma of the breast. People with known or suspected estrogen-dependent neoplasia. Women with undiagnosed vaginal bleeding. People with benign or malignant tumors which developed during the use of oral contraceptives or other estrogen-containing products. Anyone with liver dysfunction or disease. If Skin Exposure: Wash immediately with soap and water. Eye Exposure: Immediately flush with plenty of water for 15 minutes. Get medical attention. If Swallowed: Do not induce vomiting. Altren® (altrenogest) Solution 0.22% contains an oil. Call a physician. Vomiting should be supervised by a physician because of possible pulmonary damage via aspiration of the oil base. If possible, bring the container and labeling to the physician.

Overdose Information

Contact your nearest emergency animal hospital.

Side Effects

Altren® (altrenogest) Solution 0.22% is contraindicated for use in mares having a previous or current history of uterine inflammation (i.e., acute, subacute, or chronic endometritis). Natural or synthetic gestagen therapy may exacerbate existing low-grade or "smoldering" uterine inflammation into a fulminating uterine infection in some instances.

Storage

Store at or below 77°F (25°C). Reclose bottle tightly.