Hello, My brother is currently taking Rifampicin 600mg, Pyrazinamide500mg, Ethamubtol400mg and INH 100mg to treat his spine TB. He is experiencing severe side effects such as vomiting, diaherrea, and loss all his appetite. Is there a different medicine or a lessor dosage to treat his TB? His doctor is in a different country so he would like to know if there is a different options for treatment before deciding to take the trip to return to his doctor as the trip is very costly. Thanks in advance for your h