Introduction: In the modern world. drug abuse is one of the fastest emerging social issues. Cannabinoid receptor agonists are becoming increasingly popular as abused substance due to their ease of cultivation and availability. Case report: We present a series of three cases who were scheduled for lower limb surgeries planned under spinal anaesthesia. https://www.roneverhart.com/Air-Music-Technology-Vacuum-Pro-Virtual-Instrument-p8397/