<prompt> Neuropsychiatry symptoms are seen with which anti TB drug ?INHRifampicinPyrazinamideStreptomycin  <response>: Ans. is a i.e., INH Adverse effects of INH Peripheral neuritis most common, hepatitis, optic neuritis atrophy, seizure, ataxia, muscle twitching, toxic encephalopathy, psychoses, rashes, fever, ahralgia, acne, lupus like syndrome, hemolytic anemia in G6PD deficiency. Note: Most common antitubercular drug which is implicated in causing peripheral neuropathy is INH. 