Jack Tauwhare, who attended Dr. Bearman's Christchurch talk, began using medicinal cannabis following a rugby league accident that left him paralysed, and has seen significant health improvements since.
"Cannabis took all the spasms and burning sensations away gradually, then movement began to return to different parts of my body.
"Really, it gave me my life back."
Ms. Catherwood's mother also began using medicinal cannabis to treat her own cancer near the end of her life.
"If she had begun treatment sooner, she would still be alive today. I know that."
Dr. Bearman finished off his talks on April 4 with the launch of his new book, 'Cannabis Medicine,' which he hoped would serve to demystify medicinal cannabis in New Zealand.