Risk of first-generation H1-antihistamines: a GA2LEN position paper
Church, M.K., Maurer M, K., Simons, F.E.R., Bindslev-Jensen, C., van Cauwenberge, P., Bousquet, J., Holgate, S.T. and Zuberbier, T. (2010) Risk of first-generation H1-antihistamines: a GA2LEN position paper. Allergy, 65, (4), 459-466. (doi:10.1111/j.1398-9995.2009.02325.x). (PMID:20146728).
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Background: First-generation H1-antihistamines obtained without prescription are the most frequent form of self-medication for allergic diseases, coughs and colds and insomnia even though they have potentially dangerous unwanted effects which are not recognized by the general public.
Aims: To increase consumer protection by bringing to the attention of regulatory authorities, physicians and the general public the potential dangers of the indiscriminate use first-generation H1-antihistamines purchased over-the counter in the absence of appropriate medical supervision.
Methods: A GA2LEN (Global Allergy and Asthma European Network) task force assessed the unwanted side-effects and potential dangers of first-generation H1-antihistamines by reviewing the literature (Medline and Embase) and performing a media audit of US coverage from 1996 to 2008 of accidents and fatal adverse events in which these drugs were implicated.
Results: First-generation H1-antihistamines, all of which are sedating, are generally regarded as safe by laypersons and healthcare professionals because of their long-standing use. However, they reduce rapid eye movement (REM)-sleep, impair learning and reduce work efficiency. They are implicated in civil aviation, motor vehicle and boating accidents, deaths as a result of accidental or intentional overdosing in infants and young children and suicide in teenagers and adults. Some exhibit cardiotoxicity in overdose.
Conclusions: This review raises the issue of better consumer protection by recommending that older first-generation H1-antihistamines should no longer be available over-the-counter as prescription- free drugs for self-medication of allergic and other diseases now that newer second- generation nonsedating H1-antihistamines with superior risk/benefit ratios are widely available at competitive prices.
|Keywords:||adverse event, allergic rhinitis, cognitive function, sedation|
|Subjects:||Q Science > QR Microbiology > QR180 Immunology
R Medicine > RM Therapeutics. Pharmacology
R Medicine > RS Pharmacy and materia medica
|Divisions:||University Structure - Pre August 2011 > School of Medicine
|Date Deposited:||17 Mar 2010|
|Last Modified:||18 Jun 2012 11:28|
|Contributors:||Church, M.K. (Author)
Maurer M, K. (Author)
Simons, F.E.R. (Author)
Bindslev-Jensen, C. (Author)
van Cauwenberge, P. (Author)
Bousquet, J. (Author)
Holgate, S.T. (Author)
Zuberbier, T. (Author)
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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