A warning has been issued after a stimulant called "eutylone'' was detected in Re-Ori drug testing on campus last week.
Late last week, the Otago University Students' Association warned on its Facebook page "an unknown substance called eutylone'' had been identified by the drug-testing body KnowYourStuff- NZ on Wednesday.
The same substance, previously referred to as C86, and sometimes termed "bath salts'', was also detected before the Hyde Street Party in April.
OUSA chief executive Debbie Downs said detailed figures about the latest testing were not available yesterday.
"The results to date, however, definitely prove the value of the service and the need for it,'' Ms Downs said.
The OUSA did not condone the taking of illegal drugs, but the protective value of testing was "very much for us ... a positive''.
Asked about the student response, she said there had been no issues over the latest voluntary tests.
At Orientation, at the start of the year, 61 tests were sought by students, and 81 tests were sought before the Hyde Street Party.
The association advised via Facebook on Thursday evening that further testing was available until 8pm and ``we encourage people to make use of this service''.
"As always, the best measure to avoid harm is to not use,'' it said.
An earlier statement from KnowYourStuffNZ warned that people who thought they might have MDMA, also called ecstasy, might be mistaken.
The drug testing body mentioned the detection of eutylone and said "we recommend you call in and check''.
Eutylone came in a crystal form, which crushed to white powder.
The drug testing body said if anyone experienced a racing heart rate, anxiety, elevated body temperature, or numbness/tingling in the extremities, to seek medical advice.
