In an interview with German financial daily Handelsblatt, Draghi urged politicians to implement the necessary reforms, reduce tax burden and red tape to support the euro zone recovery, which Draghi said was "fragile and uneven".
There was a limited risk of deflation in the euro zone, Draghi said, but if inflation remained too low for too long and led to receding inflation expectations, the ECB would need to act to fulfill its mandate.
"The risk that we do not fulfill our mandate of price stability is higher than six months ago," Draghi was quoted as saying in an interview that will be published on Friday.
"We are in technical preparations to adjust the size, speed and compositions of our measures early 2015, should it become necessary to react to a too long period of low inflation. There is unanimity within the Governing Council on this."
He added that government bond purchases were among the tools the ECB could use to fulfill its mandate, but that state financing - which is prohibited by the treaty - had to be avoided.
