Hi, thanks for the query to H.C.M.
Forecox one tabs consist of--Rifampicin
--Isonizid 150 mg
If the weight of your's wife is above 50 kg than the dose is accurate, if less than 50 kg ( below 45) than consult the doctor.
As far as concerned about pain in legs, it is not related to treatment or its part.
The cause of leg pain may be some myalgia
, leg cramps
( due to fatigue) , excessive loss of water with minerals due to sweating.
Once again you have to consult and take an advice for this .
One thing note down please take a complete course of T B , otherwise these type of patients develops M D R T ( Multi Drug Resistance Tuberculosis
) , which is very difficult to treat.
Have a good luck. Dr. HET