It's not just about tobacco either. Look at this recent line from the BMJ Open just published "Low alcohol consumption and pregnancy and childhood outcomes: time to change guidelines indicating apparently ‘safe’ levels of alcohol during pregnancy?" It concludes that despite thin evidence all women should be warned about the use of alcohol in pregnancy.
With cannabis many systematic reviews and meta-analyses have shown retardation of foetal growth rate, small for dates infants, increased rates of early and premature births and impairment of school age and early life development intellectually socially and often physically.
The summary comments of the Director of the National Institute of Drug Abuse in JAMA Psychiatry on 9th December 2016 on the use of cannabis in pregnancy strongly concur that it is not appropriate and women of reproductive age should be warned against its use. Even the patient information leaflets from GW Pharmaceuticals which markets Sativex globally emphatically urges both males and females of reproductive age not to indulge in cannabinoid use. For these potent arguments – which should be enough to close out any rational debate - the cannabis camp have no meaningful response – only copious slander.
Pamela McColl (S.A.M. Canada) causes waves for the same reason a large rock does when firmly rooted to the bed of a fast flowing river. Eddies form behind the rock because it doesn't move – it is rooted an grounded deep in the river bed. The rhetoric – and slander – of the cannabis camp gets more disconnected from reality – and especially the totality of the scientific evidence – with every passing day. One day everyone will be only too well aware that the "deep green king has got no clothes on." And for that matter - nor have any of his children!
Adj Professor A.S. Reece