Isoniazid
"I am on my 5-th month of Tuberculosis treatment. Taking Isoniazid with combination of Rimfampin and Vit. B6. It is very difficult time for me, because since the beginning of taking this medication I'm experiencing very strong mood changes, I'm very nervous and anxious. Can't sleep at night. I never read about the anxiety side effects of Isoniazid, but I have one since the start of the treatment. No gastrointestinal side effects though."