Counterfeit diazepam tested positive for nitazenes

Drug alert on counterfeit diazepam tested positive for nitazenes.

Counterfeit blue circular tablets marked with “10” on one side and “DAN 5620” on the other with a half score down the middle separating Dan and 5620, which look like diazepam, are circulating in Leeds and surrounding areas.

The tablets have tested positive for nitazenes. Nitazenes are an extremely potent synthetic opioid – much stronger than fentanyl. Only a small amount can cause overdose, serious harm and death.

The signs of overdose include: loss of consciousness, shallow, rasping or intermittent breathing (or not breathing at all), pinpoint and fixed pupils, blue lips and/or fingertips.

Everyone trained in naloxone is advised to ensure they are carrying kits with them at all times or have them easily accessible

To overcome the effects of nitazenes you may need to use several doses of naloxone

Know the risks

It is impossible to tell exactly what is in a drug just by looking at it, even if you have taken something similar before

  • The best way to avoid risks from drugs is to not take any
  • Almost all illicit prescription drugs are fake – do not assume a tablet is genuine simply because it looks like prescription diazepam
  • If you choose to use, only take a small amount, you don’t know how it will affect you
  • Do not use alone, particularly if it is your first time
  • Do not all use at the same time – someone needs to be able to call for help and administer naloxone
  • Avoid mixing with other drugs and alcohol
  • If you / your friends become ill:
    • call 999 for an ambulance and be honest about what has been taken
    • administer naloxone if you have it
    • follow all medical advice given

    For help/advice about drugs or naloxone, contact Forward Leeds on
    0113 887 2477.


    Page last updated: 10th Jul 2026 10:36am