The daughter of a former Premiership footballer hanged herself after using the party drug meow meow, an inquest has heard.

Sibylle Sibierski, 18, regularly took mephedrone - also known as meow meow or Mcat - with her friends, the court was told.

But she would suffer depressive and erratic moods and paranoia when she was coming down off the drug.

Miss Sibierski's decision to take her life was triggered by the end of a tumultuous five-month relationship with her boyfriend Adam Mohammed.

The day before her death, the pair were involved in a violent argument and Mr Mohammed was forced to call the police, who arrested his girlfriend on suspicion of assault.

She was later released and hours later began drinking champagne and taking mephedrone.

The privately educated A-level student, who also worked part-time as a club promoter, then hanged herself at her £200,000 apartment.

Her father Antoine Sibierski, 35, who played for Manchester City and Newcastle United, called police when he was unable to contact his daughter by phone.

Officers discovered her body after they broke down the door of her one-bedroom flat.

Yesterday a coroner warned that the teenager may have killed herself because of her depressive state of mind as a result of taking meow meow and alcohol.

Deputy coroner Joanne Kearsley told her parents: 'I suspect that this may well have been an impulsive act perhaps driven by her low mood.

'On February 1, the deceased was found hanging and her state of mind may have been affected by her use of mephedrone and alcohol.'

Mephedrone has been sold in powder form as a 'legal high' to clubbers and revellers for years.

After being linked to the deaths of more than 25 party-goers it was outlawed as a class B drug in April.

Dr Julie Evans, a consultant toxicologist, told the inquest that studies had shown the drug was linked to suicidal thoughts.

She said: 'They could certainly have affected her behaviour and therefore have contributed to the decision she made without her realising the consequences.'

The inquest, held in Stockport, heard the teenager was a regular user of meow meow which she would legally buy for £25 a gram every weekend from a 'herbal shop' near her home in Altrincham, Cheshire.

A friend, Victoria Turner, told the inquest the teenager had taken legal highs at weekends and when she was on mephedrone she seemed to be 'paranoid and on edge a lot of the time'.

The post-mortem found the teenager had alcohol and a very low level of mephedrone and another party drug, ketamine, in her blood.

Miss Kearsley recorded a narrative verdict.