Unintentional Pharmaceutical-Related Medication Errors Caused by Laypersons Reported to the Toxicological Information Centre in the Czech Republic

Dimetindene-Is the minimum toxic dose for children too strict?

Dimetindene is a sedating antihistamine indicated for the symptomatic treatment of allergic conditions. Dimetindene is marketed among others under the trade name Fenistil (oral solution). Toxicity data are limited, and there is no consensus on the dose at which children require hospitalization. Objective is to determine the potentially toxic dose in children. Data in children with age up to 15 years were obtained from hospital discharge reports. Of 139 paediatric hospital discharge reports, 23 cases (16.5%) were excluded because of uncertain ingestion. In 116 children (46 boys and 70 girls, mean age 2 years and 9 months ± 1 year and 1 month), the majority of children developed no symptoms (87 children, 75%, mean age 3 years±1 year) and the remaining 29 children (25%, mean age 2 years and 11 months ± 1 year and 3 months) developed only mild and spontaneously resolving symptoms of poisoning after a dose of 0.82 ± 0.32 mg/kg b.w. (range 0.26-1.82 mg/kg). In 98% of all cases, hospitalized children were observed for a maximum 24 h, and their condition did not require specific treatment. In conclusion, the prognosis for accidental dimetindene poisoning in children appears to be good and the minimum toxic dose has been determined to be 0.5 mg/kg b.w.

A retrospective analysis of therapeutic drug exposures in New Zealand National Poisons Centre data 2018-2020

OBJECTIVE

The New Zealand National Poisons Centre advises the general public and health professionals on management of exposures to various substances. The epidemiology of medicine exposures was used to characterise inappropriate use of medicines across age groups.

METHODS

Data from contacts in 2018-2020 were analysed: patient demographics (age, gender), number of therapeutic substances, and advice given. The most frequent individual therapeutic substance exposures across age groups and the reasons for these occurring were determined.

RESULTS

A total of 76% of children's (aged 0-12 or unknown child) exposures were exploratory in nature, involving a variety of medicines. Youth (aged 13-19) had frequently engaged in intentional self-poisoning (61% of their exposures), and most commonly by exposure to paracetamol, antidepressants, and quetiapine. Adults (aged 20-64) and older adults (aged 65 and over) were frequently affected by therapeutic errors (50% and 86% of their exposures, respectively). Adults were most frequently exposed to paracetamol, codeine, tramadol, antidepressants, and hypnotics, while older adults were exposed to paracetamol and various cardiac medications.

CONCLUSIONS

Types of inappropriate medicine exposures vary in different age groups.

IMPLICATIONS FOR PUBLIC HEALTH

Poisons centre data add to pharmacovigilance monitoring of potential harm from medicines and inform medication safety policies and interventions.

Wrong administration route of medications in the domestic setting: a review of an underestimated public health topic

Introduction: Since medication errors related to incorrect administration routes are less common than other errors, they are rarely considered when assessing patient mistakes. The present review was performed to search for papers assessing incorrect route medication errors made by adult patients with the aim of providing an overview of this phenomenon.Areas covered: PubMed, Scopus, and EMBASE were searched up to October 2019 using free text and MeSH terms, returning 7609 results. Papers were considered eligible if they considered incorrect administration route errors by adult patients in domestic settings. Eleven papers were included, primarily from National Poison Centers (NPCs) or similar institutions from USA or Europe (observation period: 1985-2014). The data showed how an incorrect route of self-administration is a concern for patient safety and should be considered when evaluating medication errors. Moreover, one of the main observations that the results highlighted was the difficulty of obtaining clear and precise data regarding self-administration.Expert opinion: NPC reports are a reliable but not exhaustive tool due to high underreporting; reports should provide additional information or insights into these issues. Additionally, improvements in drug packaging and labeling, proper plain language instruction and patient education could reduce the frequency of such errors.