Your practice should only claim for items which you have bought in and have dispensed. 

If you have not purchased an item, you should not be claiming for it.

Your Sub ICB Location (SICBL) may have a local payment available for just administering the item.

If you’ve purchased an item and provided this to another practice for them to dispense, you should not claim for this.

You would need to contact your SICBL to discuss payment between yourself and the other practice.