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Estrone Sulfate for Veterinary Use
By Barbara Forney VMD

 
Overview
Therapeutic Class
Hormone
Species
Horse
Commonly prescribed by vets for:
Exercise-induced pulmonary hemorrhage, mild anabolic steroid
   

Basic Information

Estrone is a naturally occurring form of estrogen. In the horse, it is produced by the ovaries, placenta, and testis. Estradiol is the dominant estrogen in mares and is responsible for sexual behavior. There is very little scientific study of exogenous estrone use, but this drug has been used for many years based on anecdotal information and general knowledge regarding the basic properties of estrogens.


Horses

Exogenous estrone is administered to performance horses, particularly geldings as a possible preventative for exercise induced pulmonary hemorrhage (EIPH), and for its mild anabolic effects. Stress failure of pulmonary capillaries is one hypothesized component in the pathogenesis of EIPH. The rationale for estrone use in these circumstances is that estrogens may reduce capillary bleeding and accelerate clot formation. Unfortunately estrone and other estrogens have not been effective in the treatment of this major health problem of racehorses.

There are veterinarians that use estrone on a regular basis for its mild anabolic properties. Although estrogens are only mildly anabolic, they do not have the adverse behavioral side effects sometimes seen with other anabolic steroids. In fact estrogens are thought to be mood enhancing in most species, causing some horsemen to attribute improvements in attitude, weight gain and way of going to estrogen/estrone supplementation.


Side Effects

• No side effects have been reported when estrone is used performance horses.


Precautions

• Estrogens should not be used in the pregnant mare.


Drug Interactions

• The effects of glucocorticoids may be enhanced when used with estrogens. The dose of corticosteroids may need to be reduced.


Overdose

• No information regarding acute overdose or toxicity was found.


About the Author

Dr. Barbara Forney is a veterinary practitioner in Chester County, Pennsylvania. She has a master's degree in animal science from the University of Delaware and graduated from the University of Pennsylvania School of Veterinary Medicine in 1982.

She began to develop her interest in client education and medical writing 1997. Recent publications include portions of The Pill Book Guide to Medication for Your Dog and Cat, and most recently Understanding Equine Medications published by the Bloodhorse.

Dr. Forney is an FEI veterinarian and an active member of the AAEP, AVMA, and AMWA.

You can purchase books by Dr. Forney at www.exclusivelyequine.com

The information contained on this site is general in nature and is intended for use as an informational aid. It does not cover all possible uses, actions, precautions, side effects, or interactions of the products shown, nor is the information intended as medical advice or diagnosis for individual health problems or for making an evaluation as to the risks and benefits of using a particular product. You should consult your doctor about diagnosis and treatment of any health problems. Information and statements have not been evaluated by the Food and Drug Administration ("FDA"), nor has the FDA approved the products to diagnose, cure or prevent disease.

Wedgewood compounded veterinary preparations are not intended for use in food and food-producing animals.

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