what is the best medicine for my PTV left upper lobe , im taking a medicine since april 3,2014 until now .. the medicine is rifampicin, isoniazid, pyrazinamide & ethambutol hydrochloride tablets USP 3 tablets, last July 25, 2014 i stop taking this medicine .. then now im taking the medicine is called Myrine 3 tablets before breakfast start july 27 2014..