Cannabis oils and tinctures range in prices from 10¢ – 30¢ per milligram depending on the mix and concentration of cannabinoids, mainly THC and CBD. Cannabis flower, the dispensing of which is more restrictive in WA, averages at $15 per gram. Estimates at the cost of medical cannabis range from $450- $600 per month. Medical cannabis does not qualify for the Pharmaceutical Benefits Scheme.