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Original Research

Unresolved gustatory, olfactory and auditory adverse drug reactions to antibiotic drugs: a survey of spontaneous reporting to Eudravigilance

, , , &
Pages 1245-1253 | Received 22 May 2019, Accepted 02 Oct 2019, Published online: 13 Oct 2019
 

ABSTRACT

Objectives: Sensory adverse drug reactions (ADRs) are generally expected to be transient in nature. However, spontaneous reports describe frequently these events as long-lasting or unresolved. In this study, the authors reviewed the Eudravigilance publicly accessible database to describe the volume and expectedness of potentially unresolved outcomes for gustatory, olfactory and auditory (GOA) suspected ADRs associated with antibiotics for systemic use.

Methods: ‘Overall’ and ‘GOA’ suspected ADRs were extracted from Eudravigilance to estimate the distribution of their outcomes among different antibiotic groups. Then, the authors identified the drugs contributing to at least 15% of all suspected GOA ADRs observed for the antibiotic groups, and evaluated the expectedness.

Results: The frequency of persistent/permanent outcomes was higher for GOA suspected ADRs, as compared to the overall ones. Unresolved and undetermined outcomes for antibiotic-associated GOA ADRs in Eudravigilance might hide a large number of events with underestimated clinical consequences. Several persistent/permanent antibiotic-associated GOA reactions could be classified as serious and unexpected.

Conclusion: Potential long-lasting or irreversible GOA reactions are often reported for all antibiotics drugs. Further studies are warranted to clarify whether this is an actual safety issue or simply it reflects a general difficulty in outcomes assessment for such reactions.

Author contributions

SF, IC, LL, and MT were involved in the conception, design, analysis and interpretation of the data. CB and MT revised critically the manuscript, and SF, IC, LL, CB, and MT reviewed the final version. All authors agree to be accountable for all aspects of the work.

Declaration of interest

The authors have no relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript. This includes employment, consultancies, honoraria, stock ownership or options, expert testimony, grants or patents received or pending, or royalties.

Reviewer disclosures

Peer reviewers on this manuscript have no relevant financial or other relationships to disclose.

Supplemental material

Supplemental data for this article can be accessed here.

Additional information

Funding

This paper was not funded.

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