thanks fo coming to HCM
you are suffering from tubercular arthritis
of left shoulder joint. which is extrapulmonary paucibacillary disease
and usually non contagious.
the regimen given by your doctor is as per the guideline which says 2 months of INH
,Rif, ethambuto, PZA and following it INH and Rif total duration being 9-12 months in your case.
if acute hepatitis
is detected all drugs has to be stopped and then restarted once it resolves to know the culprit drug which are usually INH, Rif and pza....so this was also an excellent step on the part of your doctor...
the daily doses are INH(5mg/kg), Rif(10mg/kg), pza( 25mg/kg) ethambutol
(15-20mg/kg)....so you can see the doses are accurate.
it will be my advice and request to kindly continue the treatment for prescribed period and report him if any adverse effect occurs...