Intended for healthcare professionals

Letters Varenicline and suicide

Safety data from New Zealand

BMJ 2009; 339 doi: (Published 31 December 2009) Cite this as: BMJ 2009;339:b5654
  1. Mira Harrison-Woolrych, director1
  1. 1Intensive Medicines Monitoring Programme, NZ Pharmacovigilance Centre, University of Otago, PO Box 913 Dunedin 9001, New Zealand
  1. mira.harrison-woolrych{at}

    The recent letters on varenicline and suicide raise interesting issues about different approaches to identify and quantify risk in pharmacovigilance.1 2 In New Zealand the Intensive Medicines Monitoring Programme (IMMP)3 is currently performing an observational cohort study of varenicline. Our cohort is established directly from pharmacy dispensing data, which more accurately estimates varenicline exposure than prescription records …

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