Many children are being forced to live in dirty and even dangerous surroundings and lack many essentials including having enough to eat and clean clothes to wear because the household money is frittered away on booze, the charity warned.
My dad has been drinking and taking drugs a lot recently - it's ruining our family.
He gets angry when he has been drinking so he says nasty things to us like we are stupid and worthless. I'm finding it difficult to deal with because underneath it all I know he's a really good dad.
The emotional trauma of their parents' substance abuse combined with their chaotic home lives is driving many children to depression, self harm and even suicidal thoughts, the NSPCC said.
More top news
Kauto Star, who won the King George VI Chase a record five times, has been put down, the Racing Post reports.
BBC will no longer be 'the home of the Olympics' after the IOC is swayed by a massive bid.
A tourist who ran into a hail of bullets to help save victims of the Tunisia massacre has given an emotional recount of the attack.