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EIPH: Stop the Bleeding

One of the toughest battles facing owners and trainers of today’s racehorse is exercise induced pulmonary hemorrhage (EIPH), or bleeding internally from the capillaries in the lungs. More than 70% of racehorses are affected. The causes of EIPH are many but what is known is that bleeding from the nostrils, called epistaxis, occurs because of hemorrhaging in the pulmonary vessels associated with strenuous exercise and increased blood pressure. Probable contributing factors can include environment and pollutants and particles in the air, upper airway pathology, breeding and track cushion impact. The anti-bleeding medication Salix (furosemide, also known by the brand name Lasix) has been used to help curb bleeding since the 1960s and has been allowed for raceday use at most tracks in North America for more than two decades. Clinical trials of Lasix, which alleviates high blood pressure by increasing urine production, have proven that the drug eliminates or reduces…

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