Agranulocytosis and Aseptic Meningitis Induced by Sulfamethoxazole-Trimethoprim.

Background: Sulfamethoxazole-trimethoprim is an antibiotic that can cause rare and potentially life-threatening adverse effects. This case describes an immunocompetent patient who developed acute agranulocytosis complicated with aseptic meningitis after being prescribed sulfamethoxazole-trimethoprim.

Case Presentation: A healthy 39-year-old male veteran presented to the emergency department with worsening left testicular pain and increased urinary urgency and frequency.