Deaths from heroin overdoses in north Richmond have risen sharply. Credit:Eddie Jim

Drug users will be allowed to consume ice under medical supervision at Melbourne's new safe injecting room, despite previous state government assurances that it would be banned from the centre.

Users will be able to take up to three grams of drugs such as heroin or ice into the injecting centre without penalty.

The government released regulations for the North Richmond Centre late on Tuesday afternoon that revealed there will be no restriction on the drugs of dependence that can be used in the injecting room.

It come after Mental Health Minister Martin Foley said last October there would be protocols developed to keep ice and amphetamines out of the centre.