The inquest found Mrs Headspeath died from pneumonitis caused by acute pancreatitis which in turn was caused by chronic codeine use
An investigation by the coroner's office found she had been prescribed codeine from 16 online companies spending more than 10,000
He said he was not aware of her use of online chemists
But he had kept prescribing codeine to stop her taking over-the-counter ibuprofen
Coroner Nigel Parsley said Mrs Headspeath had been able to " manipulate " the system and he delivered a narrative conclusion that she died as a result of the " uncoordinated availability of codeine from multiple suppliers "
Mrs Headspeath's mother Elaine Gardiner said the family felt "let down" and it was "disgraceful" there was no system where online firms were legally obliged to check with a patient's local GP