MEDizzy - A 19-year-old woman has been under the care of an allergist

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Drugs used in treatment of infectious disease and anemia

A 19-year-old woman has been under the care of an allergist and immunologist since she learned she had a deficiency of C5-9 (the membrane attack complex) of the complement cascade. Her roommate at college recently developed meningitis due to Neisseria meningitis. Upon learning this, her physician recommends that she begin taking what antibiotic for prophylaxis?

ExplanationPatients with an increased risk of Neisseria meningitidis infection can be given rifampin for prophylaxis. Ceftriaxone is often used in the case of confirmed meningitis. Isoniazid is used for single-agent prophylaxis in the case of tuberculosis exposure. Dapsone and para-aminosalicylic acid are used in the treatment of leprosy.