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Fifty newly diagnosed patients of pulmonary tuberculosis developing streptomycin induced vertigo were assessed subjectively and objectively (by craniocorpography). They were divided into two groups. After stopping injection streptomycin controls received calcicum lactate tablets t.i.d. and the study patients received betahistin hel t.i.d for 10 days. The objective improvement in control group was 28 per cent and in study group it was 52 per cent. Betahistine dihydrochloride appears useful in relieving streptomycin induced vertigo.