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Standard TB Treatment is divided into two phases

  • Intensive Phase(IP): In this phase,
    • Kills most of the TB bacteria during the first 8 weeks of treatment, but some bacteria can survive longer
    • Therefore, more drugs are administered to kill the bacteria and reduce the severity of disease.
    • Treatment in this phase usually is of short duration(2 to 6 Months or more) in comparison to Continuation Phase(CP)
  • Continuation Phase(CP): In this phase,
    • All the remaining TB bacteria are in the dormant stage i.e., stage when growth and development of bacteria are temporarily stopped.
    • Therefore, fewer but powerful antibiotics are administered to kill those bacteria. 
    • Treatment in this phase usually lasts longer than Intensive Phase(IP)(4 to 18 Months or more)


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