Dangers of medicine abuse

  • Safety Flash
  • Published on 16 January 2009
  • Generated on 8 October 2026
  • IMCA SF 01/09
  • 2 minute read

A Member has reported two incidents highlighting the dangers of the inappropriate use of prescribed medicine. 

What happened?

On two different offshore vessels personnel took prescription medication that was not prescribed for them.

One of the cases was thought to be life threatening and required emergency medical evacuation by helicopter. In addition to the medical risk to the patient there was also unnecessary risk to the medical crew and significant cost incurred for the medical evacuation and onshore support.

The second case was managed by onboard medical personnel.

Both cases were considered to be unsafe acts and violations of the company’s drug and alcohol policy and, as such, grounds for disciplinary proceedings possibly leading to dismissal.

Lessons learnt

The following lessons can be drawn from the incidents:

  • Personnel should always report to the site medic any prescribed medications as well as ‘over the counter’ (non-prescription) medications being used while at work.

  • Always follow dosage instructions on all prescribed and ‘over the counter’ (non-prescription) medications.

  • All warnings related to potential food interactions and interactions with other drugs should be fully heeded.

  • Never share medication prescribed for you or another person and never accept prescribed medication from another person.

Latest Safety Flashes:

Hydraulic oil leak detected below moonpool

A hydraulic oil leak was identified below the moonpool after the worktable doors were opened.

Read more
Dropped scaffold board (kickplate) – SIF near miss

A scaffolding kickboard was accidentally dropped falling from a height of 6.5 metres to the main deck.

Read more
H₂S detected on deck

During vessel transit back to port, Hydrogen Sulphide (H₂S) was detected in the open space on the main deck.

Read more
Restoration and verification after maintenance

A missing flooring panel was identified beneath a 415V bow thruster electrical motor cabinet.

Read more
Vessel contact during materiel transfer in adverse weather

One vessel lost heading and position control because of the strong winds and swell, pushing it toward another.

Read more

IMCA Safety Flashes summarise key safety matters and incidents, allowing lessons to be more easily learnt for the benefit of the entire offshore industry.

The effectiveness of the IMCA Safety Flash system depends on the industry sharing information and so avoiding repeat incidents. Incidents are classified according to IOGP's Life Saving Rules.

All information is anonymised or sanitised, as appropriate, and warnings for graphic content included where possible.

IMCA makes every effort to ensure both the accuracy and reliability of the information shared, but is not be liable for any guidance and/or recommendation and/or statement herein contained.

The information contained in this document does not fulfil or replace any individual's or Member's legal, regulatory or other duties or obligations in respect of their operations. Individuals and Members remain solely responsible for the safe, lawful and proper conduct of their operations.

Share your safety incidents with IMCA online. Sign-up to receive Safety Flashes straight to your email.