In five years of operation, refunds have consistently remained under one percent of total customers. The safety of the Buteyko method has not been questioned. Given that the doctor-patient relationship is not interfered with, and medication regimes are only altered under doctor's supervision, it is difficult to justify claims that the Buteyko method is dangerous. Using the current research on the Buteyko Breathing Method, it is impossible to give an ex cathedra judgment on the effectiveness of the method for the treatment of asthma. Research has been limited, and cannot claimed to be definitive.
All research has returned similar results - the method is effective.
The Brisbane trial is the best western study of the Buteyko Method. While it is difficult to doubt the method can be an effective intervention for asthma. Without broad longitudinal studies, it may legitimately claimed that Buteyko is unproven. The outcome of the Brisbane trial has led the Australian National asthma Campaign to include Buteyko into their next doctor's asthma Management Handbook, giving official recognition to the method. In Russia, the method has been endorsed there for many years.