Complex sentence: Synthetic cannabinoids are available as prescription drugs in some countries, examples include; dronabinol, available in the United States and Canada, and nabilone, available in Canada, Mexico, the United Kingdom, and the US.
Split into simpler sentences: Synthetic cannabinoids are available as prescription drugs in some countries. Examples include dronabinol, available in the United States and Canada, and nabilone, available in Canada, Mexico, the United Kingdom, and the US.