Source · Prevention of Future Deaths

Fallon Adams

Ref: 2025-0647 Date: 29 Dec 2025 Coroner: Simon Milburn Area: Cambridgeshire and Peterborough Responses identified: 1 / 1 View PDF

There was a failure to provide specific warnings to the prisoner about the dangers of combining prescribed sedative medications with illicit drugs, which can cause fatal over-sedation.

Date 29 Dec 2025
56-day deadline 23 Feb 2026 est.
Responses identified 1 of 1
Alcohol, drug and medication related deaths

Coroner's concerns

AI summary
There was a failure to provide specific warnings to the prisoner about the dangers of combining prescribed sedative medications with illicit drugs, which can cause fatal over-sedation.
View full coroner's concerns
 Whilst an inmate at HMP Peterborough Fallon ADAMS was prescribed methadone (for opiate withdrawal) and chlordiazepoxide (for alcohol withdrawal). She also took non-prescribed apparently obtained from an illicit source within the prison. All of these medications have a sedative effect which in combination have the potential to cause over sedation and death.  The evidence seemed to show that at no stage was Ms ADAMS given a specific warning or advice stating that taking additional non-prescribed medication/ could result in over sedation and death.  I also heard evidence in relation to Regulation 28 issues. Whilst it is clear that a number of relevant changes were being made it was not clear that a specific warning in relation to the risks of over sedation was being implemented.

Responses

1 respondent
Northamptonshire Healthcare Foundation Trust NHS / Health Body
29 Dec 2025 PDF
Action Taken

The trust has reminded prescribing clinicians of expectations for assessing and managing cumulative sedative burden, and has re-emphasized documentation standards. They have also introduced a new harm minimisation advice leaflet for patients. (AI summary)

View full response
Dear Mr Milburn

Regulation 28 Report Concerning Fallon Leanne Adams

Thank you for your Report to Prevent Future Deaths (‘Report’) dated 29 December 2025 concerning the death of Fallon Leanne Adams between 8 and 9 February 2023. Before responding to the matters of concern you have included within your Report, I would like to express my condolences to Ms Adams’ family and loved ones.

The matters of concern in your Report centre on the safeguards in place when prescribing medication in the prison setting. You highlighted the risk of interactions between prescribed and other medications, the warning or advice given by prescribers about such interactions, and that a specific warning in relation to the risks of oversedation has not yet been implemented.

You have asked me either to provide details of action taken, or proposed to be taken, or to explain why no action is proposed. Accordingly, please find below my response to your concerns detailing the actions we will take to prevent future deaths.

Advising patients on the risk of medication interactions The safe and effective use of medications within the secure environment is high priority for NHFT. We welcome the opportunity to learn from the circumstances surrounding Ms Fallon’s death to strengthen our approach.

Cont’d/… Ref: PFD Fallon Adams Date: 23rd February 2026

Trust Headquarters: St. Mary’s Hospital, London Road, Kettering, NN15 7PW Tel: 0300 027 1717

We agree it is important that a patient is informed about the risk(s) of any medication(s) our clinicians prescribe, including those that may arise from interactions with other medications they may be taking, whatever the source.

In line with guidelines from the National Institute for Health and Care Excellence (NICE), we expect our prescribers to discuss a prescription with their patient. This will include advice on:  the purpose of the prescribed medicine and what the patient can expect;  how, when, and for how long to take the medicine;  the risks, potential side effects, and when/how to seek help;  interactions with other medicines or lifestyle factors; and  monitoring or follow-up requirements.

We expect our clinicians to take contemporaneous notes of their consultation(s) with patients, which would include a record of the advice they have provided alongside information on the prescription.

We have taken the opportunity to remind prescribing clinicians working within the secure environment of our expectations concerning their discussions with patients and record keeping.

Mitigating the risk of oversedation Requests for night sedation are frequent within the secure environment, particularly from patients with substance misuse problems, because those withdrawing from illicit drugs including cannabis, opiates, alcohol and benzodiazepines commonly experience insomnia.

It is well known that insomnia may increase the risk of self-harm and suicide by negatively affecting mood, thoughts and behaviour, independently of other risk factors impacting on mental health. Whilst a non-pharmacological approach to the management of insomnia is recommended as the first line treatment, patients may require a prescription of hypnotic medication.

Considering that it is also common for patients within the secure environment to be prescribed multiple medications, it is particularly important that our clinicians are equipped to assess, manage, and communicate the risks of over-sedation with their patient(s).

Cont’d/…

Interim Chair: Faisal Hussain

Chief Executive: Angela Hillery

Trust Headquarters: St. Mary’s Hospital, London Road, Kettering, NN15 7PW Tel: 0300 027 1717

In response to your Report, we have reminded our prescribing clinicians of our expectations concerning the assessment and management of cumulative sedative burden, recognition of over-sedation, and the need for proactive escalation where concerns are identified.

We have re-emphasised our expectations on documentation standards to ensure consistent and contemporaneous recording of clinical observations, including withdrawal assessments, blood pressure readings, and explicit confirmation where no signs of over-sedation are present. Staff have been reminded of the importance of repeating observations where results are unexpected and clearly documenting clinical judgement and escalation decisions.

We have also introduced a new harm minimisation advice leaflet, which is now routinely provided to patients. This leaflet clearly outlines key risks, including polypharmacy, the use of illicit drugs alongside prescribed medication, the dangers of using substances alone in cells (particularly overnight), reduced tolerance following periods of abstinence, and the increased risk associated with medication initiation and titration periods.

I hope the content of this letter fully addresses the concerns you raised in your Report and provides assurance on the steps we will take to prevent future deaths. Please contact me if you have any questions about this letter or require further information.

Report sections

Investigation and inquest
On 10 February 2023 I commenced an investigation into the death of Fallon Leanne ADAMS aged 37. The investigation concluded at the end of the inquest on 28 November 2025. The conclusion of the inquest was that: Fallon came to her death by intoxication of mixed drugs where the illicit obtaining of had a high probability of causing her death. Failure to conduct adequate welfare checks and observations allowed for missed opportunities to intervine. Evidence of this was staff admitting to not being able to confirm respiratory movement observations, observations of movement and general observations of inmate. Unsatisfactory training was also highlighted in the evidence however this did not cause or minimally contribute to Fallon's death. Fallon came to her death between 18:33 on the 8/2/23 and 7am on the 9/2/23. She came to her death on the top bunk of cell 8, wing B1 of HMP Peterborough.
Circumstances of the death
On Thursday 9th of February 2023 at approximately 0657hours, the alarm was raised by the cell mate of Ms ADAMS in her cell at HMP Peterborough. Staff arrived on scene and found Ms ADAMS unresponsive and cold to the touch, they called for an ambulance and an ambulance crew arrived and declared Ms ADAMS deceased at 0715hours after a negative heart trace. CPR had been attempted by Prison staff. Ms ADAMS had arrived at HMP Peterborough 8 days prior to her death and had been sharing a cell for the entirety of her time at the prison. Ms ADAM’s cell mate describes that during the days prior to her death, Ms ADAMS was heavily medicated and described her has “BEING OFF HER FACE MOST OF THE TIME”. Onthe day before her death, 8th of February 2023, Ms ADAMS’ states that during the evening, Ms ADAMS was lying on the top bunk and she was slouching over the top, she then fell off the bunk and hit her head. Ms ADAMS’ cell mate states that she then put Ms ADAMS to bed and tucked her in, she checked her head for injuries or lumps but could not see any. She last spoke to ADAMS at 1930hours when Ms ADAMS asked her if another prisoner had dropped off the laundry. Ms ADMA’s could be heard snoring until 2000hours when the cell mate herself fell asleep. Staff checked on the cell at 0559hours it was a visual check through the cell hatch, the officer recorded that he could see Ms ADAMS moving. Ms ADAMS’ cell mate woke at 0625hours and confirmed this was the time by turning on the TV in the cell. She shouted to Ms ADAMS to wake up but got no reply. She then went to check on her and touched her neck, she states it was cold, she then lifted her leg and describes it as a dead weight, she then raised the alarm and staff arrived on scene and began CPR. According to prison medical records , Ms ADAMS was on the following medications:  Chlordiazepoxide 10mg  Ibuprofen 400mg  Mebeveine 135mg  Methadone 1mg  Metoclopramide 10mg  Thiamine 100mg  Sertraline 50mg

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Report details

Reference
2025-0647
Date of report
29 December 2025
Coroner
Simon Milburn
Coroner area
Cambridgeshire and Peterborough

Responses identified

Responses identified 1 of 1
All listed responses identified

Organisations named in PFD reports are normally expected to respond within 56 days. Deadline: 23 Feb 2026 (estimated).

Sent to

Northamptonshire Healthcare Foundation Trust

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