Medical and welfare groups are strongly opposing a federal government move to strip disability benefits from people whose health problems were caused solely by their own substance abuse.

The reform will take effect from July 1 unless it is disallowed in Federal Parliament.

Labor's spokeswoman for social services Jenny Macklin says the move could create serious social problems. Credit:Andrew Meares

A vote is due in the Senate on Wednesday, following Labor's notice to move a disallowance motion.

The changes were announced by Treasurer Scott Morrison in the 2017 federal budget.