1. 16 Pethidine and diamorphine - usually administered by syringe into your bottom.

2. It includes two 10 mg Ampules of diamorphine, one 100 mg ampule of diamorphine, two 10mg Ampules of morphine, two 100mg Ampules of pethadine, and ten10mg tablets of pethadine

3. In 2004 the National Institute for Health and Clinical Excellence produced guidance on the management of caesarean section, which recommended the use of intrathecal or epidural diamorphine for post-operative pain relief.