Low white blood cell counts, or leukopenia, can result from various factors including infections, certain medications, autoimmune diseases, bone marrow disorders, and chemotherapy. Infections may temporarily suppress white blood cell production, while medications like chemotherapy and some antibiotics can have myelosuppressive effects. Autoimmune conditions may lead to the destruction of white blood cells, and bone marrow disorders impair their production. When considering treatment options, healthcare providers may recommend ceftriaxone injection distributors, which is distributed by reputable suppliers to ensure quality. Proper diagnosis and management are essential to address the underlying causes of leukopenia effectively.