@Rich44 and @ajn Many thanks for this. Would be very interested to know how you get on taking the stuff. Tried it myself (home-grown) and even though it worked brilliantly in stopping symptoms (restless leg) I found the inhaling of it very uncomfortable, not to say revolting. Moreover, even though symptom relief was instant and better than any other medicines, I just couldn’t handle uncoordination and feeling drunk. Also found it intensified my mobility problems and I was largely unable to walk. So would be interested to hear whether “medically approved” stuff can get round these issues.