<prompt> Treatment of latent TB infection in Tuberculin positive, HIV positive patients:INH biweekly for 9 month2HRZ3 4HR3Rifampicin biweekly for 6 monthsPyrazinamide daily for 6 months  <response>: Ans. is a i.e., 1NH biweekly for 9 month Dosing regimens for treatment of latent tuberculosis AdultsChildren 12IsoniazidStandard regimen:o 300 mg PO daily for nine months Alternate regimens:o 300 mg PO daily for six months900 mg PO twice weeklyD for nine months900 mg PO twice weeklyD for six monthsStandard regimen:o 10 to 15 mgkg PO daily for nine months; not to exceed 300 mgdayAlternate regimen:o 20 to 30 mgkg PO twice weekly for nine months; not to exceed 900 mgdayIsoniazid and rifapentineIsoniazid orally once weekly for 12 doses, given by direct observation:o 15 mgkg, rounded up to the nearest 50 or 100 mg; 900 mg maximumRifapentine orally once weekly for three months, given by direct observation:o 10 to 14 kg: 300 mgo 14.1 to 25 kg: 450 mgo 25.1 to 32 kg: 600 mgo 32.1 to 49.9 kg: 750 mg o 50 kg: 900 mg maximumSee noteYIsoniazid orally once weekly for 12 doses, given by direct observation:o 15 mgkg, rounded up to the nearest 50 or 100 mg; 900 mg maximumRifapentine orally once weekly for three months, given by direct observation:o 10 to 14 kg: 300 mgo 14.1 to 25 kg: 450 mgo 25.1 to 32 kg: 600 mgo 32.1 to 49.9 kg: 750 mgo 50 kg: 900 mg maximumRifampin600 mg PO daily for four months10 to 20 mgkg PO daily for four months; not to exceed 600 mgdayIsoniazid and rifampinIsoniazid 300 mg PO daily for three monthsIsoniazid 10 to 15 mgkg PO daily for three months; not to exceed 300 mgday Rifampin 600 mg PO daily for three monthsRifampin 10 to 20 mgkg PO daily for three months; not to exceed 600 mgday 