If you take cannabis* medicine as prescribed you cannot legally drive.
* medical cannabis containing THC
Equal driving rights for medical cannabis patients.
MC Patient Statutory Defence for THC presence.
The federal government, state and territories formulate uniform drug driving laws to allow for a complete defence to the presence of THC in a driver’s oral fluid or blood wheresoever:
a. The driver possesses a valid doctor’s prescription for a product that includes THC;
b. The nature of the offending does not involve dangerous or reckless driving; and
c. An officer cannot establish reasonable grounds to suspect driver impairment.