This should be discussed with the treating physician. Especially at the beginning of the therapy with medical cannabis, there may still be stronger impairments during the acclimatization phase. After this phase, it should be possible to operate a motor vehicle, provided the patient adheres to the dosage recommendation and intake prescription. Also, in the event of a police check, evidence of medical cannabis does not normally lead to the revocation of the driver's license, because cannabis patients are issued with a patient passport in which the cannabis is recorded as being used to treat a medical condition. This prevents prosecution according to § 24a StVG.