Mitch Winehouse helped launch the Angelus Foundation's 'Find Out' advertising campaign, which aims to warn children and parents about the potentially lethal effects of the drugs.
"We are not talking about entrenched drug addicts, people who have been on heroin or crack cocaine or even marijuana for 20 or 30 years," Mitch said.
"This stuff can get you with one exposure - one exposure can kill you and we have to bring this to the attention of parents and kids in schools.
"This is about education, this is about giving young people the information to be able to make informed choices.
"A whole generation of young people is at risk from legal highs simply because they don't know what serious harm they can come to by taking them."
The Amy Winehouse Foundation, which was set up by Mitch following Amy's death last year, aims to educate other young people about the dangers of drug abuse.
Maryon Stewart founded the Angelus Foundation after her medical student daughter Hester died at the age of 21 in 2009 after consuming the then-legal GBL.
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