It is extremely dangerous to administer any medication to an animal without consulting a veterinarian.
Here's why:
* Dosage: The correct dosage of any medication is crucial for effectiveness and safety. Incorrect doses can be harmful or even fatal.
* Interactions: Medications can interact with each other, making them less effective or causing dangerous side effects.
* Underlying conditions: A horse may have underlying health conditions that could make certain medications unsafe.
Please contact a veterinarian immediately if your horse is sick or injured. They can properly diagnose the problem and prescribe the appropriate medication and treatment plan.