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Allergy and Antihistamine Information Frequently Asked Antihistamine Questions Is it true that antihistamines should not be taken by asthmatics?
Is it true that antihistamines should not be taken by asthmatics?
No, this is not the case at all. In fact, because of the increased risk of asthma for those who have hayfever, there is every reason for an asthmatic to use antihistamines to control their hayfever. Second generation antihistamines like Zyrtec and Claratyne (Claritin) have been shown to have no detrimental effect on asthma and can actually improve the condition.
The belief that antihistamines should not be taken by asthmatics was actually based on some studies using first generation antihistamines. These led to the assertion that antihistamines could increase an asthmatic's asthma symptoms or their decrease lung function. This is certainly not true of the second generation antihistamines now available.