| A 51-year-old man was diagnosed with pulmonary tuberculosis. Treatment for a 51-year-old man with pulmonary tuberculosis was begun initiated with isoniazid (INH), rifampicin, ethambutol, and pyrazinamide, and but these were discontinued after 3 weeks because of skin rash and itchinessg sensation 3 weeks posttreatment. Isoniazid INH monotherapy was restarted to identify the causative drug after 2 weeks of interruption. Two days laterafter INH administration, his the patient``s platelet count was reduced from 150 x× 103/mm3 to 4 x× 103/mm3. The patients did not improve despite of pPlatelet transfusion and oral corticosteroid administration for 2severe days did not cause any improvement in the patient`s condition. However, his platelet count was recovered with to 209 x× 103/mm3 after 2-day administration of intravenous immunoglobulin (IVIG) was started for two days. This report describesis a case of INH-induced thrombocytopenia due to INH, a rare adverse event, which was recovered reversed with IVIG, highlighting the efficacy of this treatment for this rare indication. |
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