The risks and benefits of a Queensland pill testing trial are being worked through after the state's mental health commissioner noted it could help save lives.

Health Minister Yvette D'Ath on Wednesday said several issues must be considered before any trial goes ahead and no decision has been made.

"Is it in the best interest of individuals and festival goers, and will it lead to less deaths, less injuries and less drug use?" Ms D'Ath responded to a question from Greens MP Michael Berkman in parliament.

"We will give this proper consideration. It will be based on evidence and we will ensure we are looking not just nationally but internationally as to the best practice in relation to this."

Ms D'Ath's comments follow Queensland Mental Health Commissioner Ivan Frkovic telling Parliamentary estimates the issue has been on the agenda.

"There is evidence, both from other jurisdictions in Australia and internationally, which would suggest having drug-checking facilities, particularly temporary ones or even fixed sites, can contribute to saving lives," he told the July 29 hearing.

Australia's first testing site, a six-month pilot program to allow people to test drugs and pills free of charge, has opened in Canberra.

The ACT government says it will help weed out dangerous substances and provide an opportunity for harm minimisation and counselling to encourage a reduction in drug use.