The Medical Letter - 2025
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July 7, 2025 (Issue 1732)  
  • Insect Repellents   
    The Centers for Disease Control and Prevention (CDC) and the Environmental Protection Agency (EPA) recommend using insect repellents to avoid being bitten by mosquitoes, ticks, and other arthropods that...
  • A Blood Test for Alzheimer's Disease   
    The FDA has cleared the Lumipulse G pTau217/ β-Amyloid 1-42 Plasma Ratio (Fujirebio), a bloodbased diagnostic test, for early detection of amyloid plaque pathology associated with Alzheimer's disease (AD)...
  • Fitusiran (Qfitlia) for Hemophilia A and B   
    Fitusiran (Qfitlia – Sanofi), a subcutaneously injected, antithrombin-directed, small interfering ribonucleic acid (siRNA), has been approved by the FDA for routine prophylaxis to prevent or reduce the...
  • In Brief: Dupilumab (Dupixent) for Chronic Spontaneous Urticaria   
    The subcutaneously injected interleukin (IL)-4 receptor alpha antagonist dupilumab (Dupixent – Sanofi/Regeneron) has been approved by the FDA for treatment of chronic spontaneous urticaria in...
  • Addendum: Drugs for Open-Angle Glaucoma   
    Our recent article on glaucoma stated that systemic adverse effects of ophthalmic beta blockers include bradycardia. A reader suggested we should have also mentioned that they rarely cause heart...
June 23, 2025 (Issue 1731)  
  • Sunscreens   
    Excessive exposure to ultraviolet (UV) radiation can cause erythema, photoaging, and skin cancer. Sunscreens are widely used to reduce these risks, but questions remain about their effectiveness and...
  • Vutrisiran (Amvuttra) for Transthyretin Amyloid Cardiomyopathy   
    The FDA has approved vutrisiran (Amvuttra – Alnylam), a subcutaneously injected small interfering RNA (siRNA), to reduce cardiovascular hospitalizations, urgent heart failure visits, and cardiovascular...
  • In Brief: Merilog — A NovoLog Biosimilar   
    The FDA has approved Merilog (Sanofi), a biosimilar to rapid-acting insulin aspart (NovoLog), for treatment of patients with type 1 or type 2 diabetes. Merilog is the first rapid-acting insulin biosimilar...
June 9, 2025 (Issue 1730)  
May 26, 2025 (Issue 1729)  
May 12, 2025 (Issue 1728)  
April 28, 2025 (Issue 1727)  
April 14, 2025 (Issue 1726)  
March 31, 2025 (Issue 1725)  
March 17, 2025 (Issue 1724)  
March 3, 2025 (Issue 1723)  
February 17, 2025 (Issue 1722)  
February 3, 2025 (Issue 1721)  
January 20, 2025 (Issue 1720)  
January 6, 2025 (Issue 1719)