Hello Dr, My wife was diagnosed with Tuberculosis and she is on medication . As advised by Dr she is currently taking Sandoz 4D. she has already completed 4months. Now she is taking R-Cinex. The problem is she is having lot of pain in her knee . in fact entire leg below knee is painful to her. we have consulted Dr for the same and he says it might be due to Sandoz 4D. the pain becomes un bearable during night time. Is it really a side effect of Sandoz 4D or some thing else. should i consult an orthopedic for the same. Thanks Salim