

For more information:
How to inject Low Molecular Weight Heparin (LMWH)
If you have been prescribed LMWH because you have an increased risk of blood clots, please watch this informative video showing how to give the injection and it answers some frequently asked questions.
When to stop taking your low molecular weight heparin injections
If you think you are going into labour, do not have any more injections. Telephone Maternity Triage and tell them that you are on heparin treatment. They will advise you what to do.
An epidural cannot be given until 12 hours (24 hours if you are on a high dose) after your last injection. You will have the option of alternative pain relief.
If the plan is to induce labour, you should stop your injections 12 hours (24 hours if you are on a high dose) before the planned date.
If your baby needs to be born by emergency caesarean within 12 hours (24 hours if you are on a high dose) of your last heparin injection you will not be able to have an epidural or spinal injection and instead will need a general anaesthetic.
If you are having a planned caesarean birth, your last heparin injection should be 12 hours (24 hours if you are on a high dose) before the planned caesarean birth.
This will be discussed with you when your induction or caesarean is booked.