Tuberculosis of the urinary tract is easily overlooked. Many patients present with lower urinary symptoms typical of ?conventional? bacterial cystitis, and suspicions of tuberculosis are aroused only when there is no response to the usual antibacterial agents or when urine examination reveals pyuria in the absence of a positive culture on routine media. Other symptoms that sometimes occur include back, flank, and suprapubic pain; hematuria; frequency; and nocturia; these might also suggest conventional bacterial urinary tract infection. Renal colic is uncommon, occurring in fewer than 10% of patients, and constitutional symptoms such as fever, weight loss, and night sweats also are unusual. Only one-third of patients have an abnormal chest x-ray.
The dose is decided by the treating doctor based on the many criteria like weight and other diseases.