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Progressive multifocal leukoencephalopathy (PML) is a John-Cunningham virus-related central nervous system that is rarely observed in persons treated with the anti-CD20 monoclonal antibody, rituximab., (© 2022. The Author(s), under exclusive license to Springer Nature Switzerland AG.)

More than half of all serious adverse drug reactions are identified seven years after FDA approval. One recent and unusual example involves a syndrome initially termed nephrogenic dermatopathic fibrosis, and then called nephrogenic systemic fibrosis (NSF)., (© 2022. The Author(s), under exclusive license to Springer Nature Switzerland AG.)

This study describes cases of individuals who report adverse events following consumption of the most commonly prescribed fluoroquinolone (FQ) antibiotics: ciprofloxacin, levofloxacin, or moxifloxacin. Fluoroquinolone (FQ) antibiotics are some of the most widely prescribed antibiotics in the world. Although these antibiotics have been on the market for more than 20 years, a wide range of serious FQ-associated adverse events first became apparent in 2006 and continued to be recognized for the next 15 years., (© 2022. The Author(s), under exclusive license to Springer Nature Switzerland AG.)

Biosimilar drugs, close copies of patented biologicals, are intended to provide access to less expensive, highly similar versions of reference (previously approved) biological agents (Kozlowski et al. in N Engl J Med 365:385-388, 2011). The biological epoetin accounts for $1.8 billion in drug spending annually worldwide (primarily for the treatment of anemia due to chronic kidney disease or anemia due to cancer chemotherapy.)., (© 2022. The Author(s), under exclusive license to Springer Nature Switzerland AG.)