The South Australian Government is being urged to consider a trial of the drug MDMA, known as ecstasy, to treat war veterans.

State Democrats MP Sandra Kanck has told State Parliament's Upper House that trials of the drug have shown excellent results for treating United States and Israeli soldiers suffering from post-traumatic stress disorder.

Ms Kanck was criticised by her own party back in 2006 for saying ecstasy could have helped people traumatised by bushfires which swept across Eyre Peninsula.

She concedes her latest suggestion will not be well-received at first.

"I imagine [what] the minister's kneejerk reaction will be ... but I hope that he will go beyond that and look at the science," she said.

"They've done it with rape victims, they've done it with war victims and everywhere they've tried it in these trials they have found it to be a superlative drug."