Welcome to HealthcareMagic forum.
Yes the hairfall is most probably a sideffect of the medication and it will resolve after completing the course .These medications also affect your liver
, joints etc and you can avoid it to some extent by taking multvitamin supplement along with it. However you must not stop the medication for tuberculosis
in between without your doctors advice .
So please consult your doctor for prescription of multivitamin
supplements and alternative brand if possible to prevent the excessive hairfall .
Hope I have answered your query.
Wishing you good health.