A 14 and a 15 year old are believed to taken blue transformer tablets.
Two 16-year-old's were also taken ill.
A 28-year-old man from Tiverton was arrested on suspicion of possession with intent to supply a Class A drug.
He's since been released pending further enquiries.
Police have issued a warning about the dangers of taking drugs.
Knife scanner deployed at under-18s event
Police educate youngsters
Torbay hospital ‘sewage leaks’ spark call for help
Repair bill getting bigger
Dartmoor will be “protected” in Freeport zone
Planners & environmentalists will retain control
Two jailed after late night brawl in Plymouth
Man dies after attack outside pub
Date announced for crucial Torbay by-election
Outcome will affect the bay's balance of power
Torquay hotel could be knocked down to build flats
But council officers say the plan should be rejected
