Letters Paradoxical medicine Ayurvedic herbal extract has evidence base cough syrup lacks BMJ 2008; 337 doi: https://doi.org/10.1136/bmj.a1413 (Published 27 August 2008) Cite this as: BMJ 2008;337:a1413 Article Related content Metrics Responses Peer review Related articles Primary Care Systematic review of randomised controlled trials of over the counter cough medicines for acute cough in adults Published: 09 February 2002; BMJ 324 doi:10.1136/bmj.324.7333.329 See more Lack of evidence for interventions offered in UK fertility centres BMJ November 28, 2016, 355 i6295; DOI: https://doi.org/10.1136/bmj.i6295 “Muddled thinking” over cannabis leaves patients in limbo, warn campaigners BMJ October 14, 2016, 355 i5556; DOI: https://doi.org/10.1136/bmj.i5556 Seven days in medicine: 5-11 October BMJ October 13, 2016, 355 i5499; DOI: https://doi.org/10.1136/bmj.i5499 Doctors warn of dangers of complementary medicine for children BMJ October 07, 2016, 355 i5439; DOI: https://doi.org/10.1136/bmj.i5439 CCG axes funding for homeopathy BMJ October 06, 2016, 355 i5448; DOI: https://doi.org/10.1136/bmj.i5448
