P6 Acupuncture Point
An acupressure wristband that is claimed to relieve the symptoms of motion sickness and other forms of nausea provides pressure to the P6 acupuncture point, a point that has been extensively investigated. The Cochrane Collaboration reviewed the use of P6 for nausea and vomiting, and found it to be effective for reducing post-operative nausea, but not vomiting. The Cochrane review included various means of stimulating P6, including acupuncture, electro-acupuncture, transcutaneous nerve stimulation, laser stimulation, acustimulationdevice and acupressure; it did not comment on whether one or more forms of stimulation were more effective. EBM reviewer Bandolier said that P6 in two studies showed 52% of patients with control having a success, compared with 75% with P6.