Black box warning
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Natalizumab
Fingolimod
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Neuromyelitis optica spectrum disorder
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List of withdrawn drugs
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List of drugs: N–Na
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ATC code L04
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Human polyomavirus 2
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Élan
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Interferon beta-1a
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Biogen
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Crohn's disease
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Multiple sclerosis
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Progressive multifocal leukoencephalopathy
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Tysabri
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