A terminally-ill man was offered the drugs by a stair lift salesman claiming they could shrink tumours.

Stairlift salesman Jason Sarver supplied the BBC with fenbendazole and ivermectin tablets for £100 Animal dewormer and a drug used to treat scabies are being sold and promoted as unproven cancer treatments, a BBC investigation has found. Following a tip off, an undercover journalist was able to buy fenbendazole and ivermectin from a stairlift salesman in south Wales and also found them for sale on Amazon. Macmillan Cancer Support said it was concerned by the findings and that a growing number of people were asking about the medicines, despite "no clinical evidence" that they work. Amazon removed the products after we contacted them, and said it had "proactive measures in place" to stop prohibited products being listed by third-party sellers. Senior doctors are worried vulnerable patients could be put at risk by taking the medicines, as they say it could harm or delay conventional treatment. Six months ago, Rebecca Holder contacted the BBC after a visit from stair lift salesman Jason Sarver. She said Sarver and her father Bob, who had a brain tumour, lung cancer and needed help with his mobility, had been discussing stair lifts when the salesman changed the topic to talk about the drugs.