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Information on how to access Fragmin® (dalteparin sodium) prescribing information and adverse event reporting can be found at the bottom of the page.

Using Fragmin Needle-Trap

Needle-Trap is a system that allows injection or self injection in a simple and safe manner. Follow the instructions and tips for use below:

Step 1

Fragmin can be injected into the abdominal subcutaneous tissue or the lateral parts of the thighs. Injection sites should be rotated to reduce bruising.

Step 2

Pick up the syringe, grasp the top of the orange Needle-Trap and bend it away from the syringe.

Step 3

Remove the needle shield, being careful to avoid bending the needle in the process. Do not attempt to replace the needle shield as damage to the needle may result. You will notice an air bubble in the syringe. It is supposed to be there and its important not to press the plunger just yet, as some of the medicine may be lost.

Step 4

Hold the syringe in one hand and, with the other hand, gently pinch the skin to form a cutaneous bend. Inject with the syringe at a right angle to the cutaneous bend, penetrating to the full length of the needle. Now inject slowly until all of the medicine has been injected.

Step 5

Keep pinching the fold of the skin while you are injecting and then release the fold of skin and pull the need out. If there is any oozing of blood at the injection site, apply gentle pressure. Do not rub the injection site as this may encourage bruising.

Step 6

Once the injection is complete, activate the Needle-Trap with one hand by forcing the needle into the trap against a hard, stable surface so that it locks into place. An audible 'click' will be heard.

Step 7

The needle is bent until the syringe exceeds a 45 degree (but less than 90 degree) angle with the flat surface to render it permanently unusable.

Step 8

Dispose of the syringe immediately into a yellow sharps bin

Tips for safe uses

  • The Needle-Trap MUST be bent away from the needle shield (this must be the FIRST STEP so that the rubber needle shield can be removed)
  • The integrated hinge allows the trap to bend 60-80 degree position
  • DO NOT bend the trap back by more than 90 degrees
  • The needle should be bent at more than a 25 degree angle on a flat surface

Tips for safe uses

In order to trap the needle safely, the needle in the syringe must be bent by more than a 45 degree (but less than 90 degree) angle with the flat surface.


NEVER use your finger to direct the trap towards the needle.

Please note

Healthcare professionals should ensure that hands are properly washed and gloved and the injection site should be properly cleaned.

  1. Fragmin SmPC [Surgical Thromboprophylaxis (2,500 IU and 5,000 IU syringes)]. Available at: and
  2. Fragmin SmPC [Medical Thromboprophylaxis (5,000 IU syringes)]. Available at:
  3. Fragmin SmPC [Treatment of VTE (7,500-18,000 IU syringes, 10,000 IU/1 ml ampoules, 100,000 IU/4 ml Multidose Vial)]. Available at:
  4. Fragmin SmPC [Unstable Angina (Graduated syringe 10,000 IU/ml solution for injection, 10,000 IU/1 ml ampoule, 7,500 IU)]. Available at:
  5. Fragmin SmPC [Haemodialysis/Haemofiltration (10,000 IU/1 ml & 10,000 IU/4 ml ampoules)]. Available at: and
  6. Fragmin SmPC [Extended Treatment in Oncology (5,000-18,000 IU syringes)]. Available at:
PP-FRA-GBR-0250. March 2021

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