The standard answer is that governments have to make a credible commitment to halting the rapid growth in the stock of money.
An alternative view held by some economists is that not just monetary reform, but also fiscal reform, is needed to end a hyperinflation. According to this view, a successful reform entails two believable commitments on the part of government. The first is a commitment to halt the rapid growth of paper money. The second is a commitment to bring the government’s budget into balance. This second commitment is necessary for a successful reform. If the government commits to balancing its budget, people can reasonably believe that money growth will not rise again to high levels in the near future.