HEROIN AND/OR COCAINE NOT GOOD IN PREGNANCY
This conclusion was reached by a Swiss laboratory study on placentas from mothers who received methadone treatment during pregnancy. Hardly surprising: risk of adverse consequences of heroin and cocaine obviously is not limited to the placenta, or to pregnant women, or to women or men who are not receiving methadone treatment. The study did not compare the harm of the illicit substances in placentas from women who did and who did not receive methadone treatment during pregnancy.
News summary available at http://news.bbc.co.uk/go/em/-/2/hi/health/8092732.stm