Cannabis compound 'halts cancer'

A compound found in cannabis may stop breast cancer spreading throughout the body, US scientists believe.

The California Pacific Medical Center Research Institute team are hopeful that cannabidiol or CBD could be a non-toxic alternative to chemotherapy.

Unlike cannabis, CBD does not have any psychoactive properties so its use would not violate laws, Molecular Cancer Therapeutics reports.

The authors stressed that they were not suggesting patients smoke marijuana.