Coroner Finds Nanny Administered Antihistamine to Sedate Infant Who Died
A tragic case has emerged from London where a coroner determined that a nanny likely gave an antihistamine to an eight-week-old baby to sedate him, leading to his death. Professor Fiona Wilcox, coroner for Inner West London, delivered this finding after an inquest held on February 23 and 24 this year, examining the events of January 15, 2024.
Details of the Incident and Investigation Failures
The baby was found unresponsive in a bassinet at approximately 6:15 am by the night nanny at the family's London residence. Despite resuscitation efforts and an ambulance call, the infant was pronounced dead at 7 am. Toxicology reports revealed the presence of chlorpheniramine, an antihistamine commonly sold under the brand name Piriton, in the baby's blood at the time of death.
Professor Wilcox stated in her prevention of future deaths report that the drug was probably administered by the night nanny, who was responsible for the child's care from 9 pm to 7 am in a second-floor bedroom. The baby had been described as unsettled and fussy, waking frequently at night, suggesting the antihistamine was given to induce sleep.
The inquest uncovered significant failures by the Metropolitan Police during their initial investigation. Officers did not examine bathroom cabinets for medication, seize feeding bottles, or search the nanny's property, missing crucial forensic opportunities. The nanny was not arrested or interviewed until October 2024, by which time all potential evidence had been lost.
Coroner's Concerns and Recommendations
Professor Wilcox expressed multiple concerns in her report:
- Lack of National Nanny Regulation: There is no national system to regulate nannies, and the individual involved in this case is still working as a nanny, registered with two agencies.
- Police Investigation Shortcomings: Child death investigation teams may be too easily reassured by well-presented home environments without considering potential poisoning or third-party interventions.
- Training and Guidelines: Police training and protocols may need updating to include seizure of feeding equipment pending toxicology results and greater awareness of drug administration risks.
She recommended that nannies receive specific training not to administer chlorpheniramine or similar substances to children without medical advice and parental consent. Additionally, warning labels on such products might require updates.
Expert Opinions and Systemic Issues
Expert testimony accepted by the court indicated that chlorpheniramine could have possibly caused or contributed to the baby's death, though it could not be definitively proven. The drug is known for sedative effects and has been linked to child deaths, with warnings against use in infants except under medical supervision for conditions like allergies.
The National Nanny Association responded to the coroner's report, highlighting a serious gap in the regulation of in-home childcare roles in the UK. A spokeswoman emphasized that this is not an isolated incident but a systemic issue, calling for mandatory registration, clear standards, and proper safeguarding checks to protect families.
This case follows another recent coroner's criticism regarding the misleading use of titles like maternity nurse after a separate infant death, underscoring broader concerns in childcare practices.
The medical cause of death was recorded as sudden unexpected death in infancy – unexplained. Professor Wilcox has sent her findings to key authorities, including the Metropolitan Police Commissioner, nanny organizations, the National Crime Agency, and the College of Policing, urging action to prevent similar tragedies.



