Pills, pastes and liquids are adversely affected by fluctuations in temperature and humidity.
Here's a crib sheet for which non-steroidal anti-inflammatory drugs work best for specific types of discomfort in horses.
Researchers report that a case of pergolide overdose resulted in only minor, temporary effects.
In a recent trial, the efficacy of ketorolac in treating hoof pain in horses was no better than for commonly used medications. But, say researchers, more studies are needed.