Anabolic steroids NSAIDs

Although the horse appears to be refractory to the hepatic effects of most NSAIDs, their hepato-toxic potential should be considered, especially when they are concomitantly administered with other potentially hepatotoxic agents, such as fluoroquinolones, potentiated sulfonamides or anabolic steroids. In addition, many herbal preparations are potential hepatotoxic agents and clients may administer these compounds concurrently with prescribed NSAIDs without consulting their veterinarian. Echinacea and kava kava products, for example, are reported to be potential hepatotoxins and both are used in herbal remedy products that claim to produce calming or sedating effects in horses (Abebe 2002). 

Anabolic steroids, aspirin, NSAIDs, quinidine, thyroxine Increased anticoagulant effects via pharmacodynamic mechanisms... 

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