References:

1- ttps://www.gov.uk/government/publications/review-of-drugs-phase-one-report/review-of-drugs-summary

2- https://www.ons.gov.uk/peoplepopulationandcommunity/birthsdeathsandmarriages/deaths/bulletins/deathsrelatedtodrugpoisoninginenglandandwales/2021registrations

3- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4590096/ Pathan & Williams, 2012.

4 - [Opioid-Associated Out-of-Hospital Cardiac Arrest: Distinctive Clinical Features and Implications for Health Care and Public Responses: A Scientific Statement From the American Heart Association | Circulation (ahajournals.org)]

5 - https://www-acpjournals-org.plymouth.idm.oclc.org/doi/10.7326/M17-2224

6 - https://cprguidelines.eu/

7 - https://aace.org.uk/jrcalc-q-and-as/administration-of-naloxone-in-cardiac-arrest-where-opiate-overdose-is-likely/#:~:text=Whilst%20accepting%20that%20there%20are%20no%20randomised%20studies,to%20reverse%20the%20case%20of%20the%20cardiac%20arrest.

8 - Comparison of intranasal and intramuscular naloxone in opioid overdoses managed by ambulance staff: a double‐dummy, randomised, controlled trial - Skulberg - 2022 - Addiction - Wiley Online Library

9 - https://www.gov.uk/government/publications/shooting-up-infections-among-people-who-inject-drugs-in-the-uk/shooting-up-infections-and-other-injecting-related-harms-among-people-who-inject-drugs-in-the-uk-data-to-end-of-2021

10 - https://www.bhiva.org/file/6074031a87755/PEPSE-guidelines.pdf 

11- https://cks.nice.org.uk/topics/hiv-infection-aids/management/post-exposure-prophylaxis/ 

12 -www.ncbi.nlm.nih.gov/pmc/articles/PMC5753997/

13 - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5945567/

14 - https://journal.chestnet.org/article/S0012-3692(15)36371-6/fulltext