Four men had to be restrained at a party in Christchurch after taking a new and dangerous drug with the nickname N-Bomb.
The emergence of the NBOMe group of drugs has doctors and nurses at Christchurch Hospital worried, with one of the men now in intensive care with kidney and cardiac complications.
The four men, in their 20s, had taken the synthetic LSD at a party in the city last night and quickly became agitated and confused.
Police were called after they were involved in a violent disturbance and had to be restrained before they were taken to Christchurch Hospital's emergency department.
One of the men suffered kidney and cardiac complications and remained in a serious but stable condition in the cardiothoracic intensive care unit.