It is an injectable medication usually administered by or under the direction of a veterinarian.

For further medical details, you can review technical summaries on ScienceDirect or clinical studies hosted by the National Institutes of Health.

Boldenone is a controlled substance. In competitive racing and equestrian sports, it is strictly regulated and often banned, as it can be detected in a horse's system for a significant amount of time. Potential Side Effects

It may increase "studdy" or aggressive behavior in some horses.

High doses can negatively impact sperm count and motility in stallions or affect the heat cycles of mares.

Because this is a prescription medication and a controlled substance, you should only purchase it through a licensed veterinarian or a verified veterinary pharmacy to ensure the safety and health of your horse. 5 Things Athletes Should Know About Boldenone | USADA

In high or frequent doses, it may affect liver enzyme levels and kidney function.