Twenty-eight adult patients admitted consecutively with tuberculous meningitis were treated with pyrazinamide, isoniazid, rifampicin and streptomycin daily during the first two months, followed by isoniazid and rifampicin daily for seven months with intensive management of the complications during the active stage of the meningitis. Twenty-two patients completed the course of treatment and recovered with minimal morbidity in three patients. Two patients died in a vegetative state from other causes seven and nine months after the start of treatment. No evidence of recurrence of meningitis was observed in the 21 patients who were regularly observed for 12 to 29 months after completing treatment. Four patients dropped out during the early stage of treatment. Intensive chemotherapy of tuberculous meningitis with this regimen before the development of serious neurological damage can shorten the duration of treatment to nine months with a favourable outcome.