Teriflunomide is an oral disease modifying therapy for patients with relapsing remitting multiple sclerosis. It is moderately effective while having a favourable safety profile with liver toxicity being the major concern. We… Click to show full abstract
Teriflunomide is an oral disease modifying therapy for patients with relapsing remitting multiple sclerosis. It is moderately effective while having a favourable safety profile with liver toxicity being the major concern. We present a series of three patients who developed pulmonary embolism within two years of initiation of teriflunomide treatment. They had stable multiple sclerosis with low level of disability, with immobility presenting a negligible risk for the development of pulmonary embolism. The estimated prevalence of pulmonary embolism in our cohort is 2.8%. Thus, we believe additional attention to the general risk factors for PE is warranted before teriflunomide is introduced to patients with multiple sclerosis.
               
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