− | Animals most commonly affected depend on the cause of the impaction. Significant risk factors include metabolic disease causing [[Dehydration - Pathology|dehydration]],inappropriate diet, and drug therapy affecting gastrointestinal motility such as [[Opioids|opioids]] and anticholinergics. | + | Animals most commonly affected depend on the cause of the impaction. Significant risk factors include metabolic disease causing [[Dehydration|dehydration]],inappropriate diet, and drug therapy affecting gastrointestinal motility such as [[Opioids|opioids]] and anticholinergics. |