diff --git a/cohortextractor/custom_medication_dictionary.csv b/cohortextractor/custom_medication_dictionary.csv
index 500ca1ea..a2135ee1 100644
--- a/cohortextractor/custom_medication_dictionary.csv
+++ b/cohortextractor/custom_medication_dictionary.csv
@@ -2,3 +2,9 @@ DMD_ID,MultilexDrug_ID,FullName
 36128211000001109,14319;1;0,morphine sulfate injection 10mg/1ml
 36128211000001109,14319;1;2,morphine sulfate injection 10mg/1ml
 10075511000001100,14319;1;3,morphine sulfate injection 10mg/1ml
+34819611000001105,2996;1;0,diamorphine hydrochloride powder for solution for injection 5mg
+42011311000001108,2996;2;0,diamorphine hydrochloride powder for solution for injection 10mg
+42011311000001108,2996;2;3,diamorphine hydrochloride powder for solution for injection 10mg
+42011511000001102,2996;3;0,diamorphine hydrochloride powder for solution for injection 30mg
+42011211000001100,2997;1;1,diamorphine hydrochloride powder for solution for injection 100mg
+42011611000001103,2997;2;1,diamorphine hydrochloride powder for solution for injection 500mg