Aseptic meningitis from trimethoprim-sulfamethoxazole in an HIV-infected adolescent.

Adolescents infected with the human immunodeficiency virus (HIV) often confront the clinician with difficult medical problems. Besides the host of opportunistic infections, which can affect these patients, side effects from medications can be frequent and, at times, life-threatening. We report a case of aseptic meningitis secondary to trimethoprim-sulfamethoxazole therapy for prophylaxis against Pneumocystis carinii in an HIV-infected adolescent.