A second man has been charged for selling LSD tabs that hospitalised a young girl on the northern NSW coast.
Police on Monday issued a public warning about the bad batch of "acid", which have an image of `Gangnam Style' internet sensation Psy printed on them.
It came after a 15-year-old girl at a birthday party at Boambee East on Saturday night was taken to hospital after having a bad reaction to what she believes was the LSD.
Police were called to another party about 11pm (AEDT) the same night when a 15-year-old boy began hallucinating after taking the drug.
Investigations into the supply of the LSD began, leading police to a house in Toormina where they arrested an 18-year-old man who was later charged with supplying a prohibited drug.
A second male, 17, turned himself in to police at Coffs Harbour police station about 10.30am (AEDT) on Tuesday.
He was charged with six counts of supplying a prohibited drug and is due before Coffs Harbour Children's Court in April.
Detective Inspector Cameron Lindsay from Coffs Harbour police has warned people against taking the drug.
"There may still be some of these tabs circulating around specific areas in the North Coast, including Toormina and Boamabee," he said in a statement.
"As we've seen in recent days, they can severely impact the users' health, and perhaps even their lives."