Treating Equine Melanomas with Cannabis Oil – a Case Study


This video is a photographic case study on treating equine melanomas with Cannabis Oil, based on a year long treatment of my 16 year old Paso Fino mare, Tori. In August 2016, Tori had so many tumors on her anus and in her rectum that she could only pass single balls of manure and was in pain as she did so and the black tar oozing from those tumors coated her silver tail and legs black. I started daily washing her perineum, drying it and applying a coat of Cannabis Oil to the surface of the skin. The video shows monthly photos taken of the tumors as I applied daily cannabis oil to the surface of her anus.

After about a year, it appeared that the tumors were trying to regrow and I started syringing 3-5 ccs of Cannabis Oil into her mouth each day in addition to treating the tumors directly and the tumors became quiescent again.

When I first published this video, people asked me what strain of Cannabis Oil I used to treat Tori. I tested the Cannabis oil and discovered that the strain I used is called “Frost” and has 11% THC and 0% CBD. That shocked me because Tori’s cancer was healed by straight THC, while I had been under the impression that CBD was the healing component in Cannabis.

In January 2018 I switched to using a Cannabis Oil strain called “Swiss” that has 6% THC and 11.7 % CBD. That strain appears to be working even better than Frost, with the combination of THC and CBD being more effective than THC alone. The photos clearly show that the tumors reduced in number and size over the time cannabis was used. The cannabis healed the open sores oozing black tar and blood, healed the small tumors on top of the big tumor and radically reduced the tumors that were blocking her rectum. Even with daily treatment, she still has the large anal tumor. Not pretty, but she is alive and happy so I rate that a full success.

It is my hope that veterinary colleges will view this video and undertake research to determine which strains of cannabis and what characteristics of THC and CBD are most effective at treating equine melanomas. If you have questions about Tori’s treatment or want copies of these photos, please contact me at

Update from March 2019: Tori’s tumors continue to look good and she continues passing full rectums of manure nearing 3 years after it was first proposed to euthanize her for bowel blockage.



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