People with scleroderma who were treated with Tracleer (bosentan) to prevent digital ulcers — open sores on the fingers or toes — saw their risk of developing pulmonary hypertension (PH) lowered almost four times, a study found. The study, “Effect of bosentan in pulmonary hypertension development in systemic sclerosis patients with digital ulcers,” was published in the journal PLOS One.  In scleroderma, poor blood flow and narrowed blood vessels can lead to ulcer formation (digital ulcers)…

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