There is inevitably a degree of uncertainty in forecasting the actual costs of demand-led schemes and, therefore, the original Estimates may not provide fully for these costs. This year an additional €183 million is required for these schemes. The cost of the general medical services scheme has risen significantly in the current year. Increased costs are arising as a result of a number of factors, including the decision to grant medical cards to the over 70s and some inaccuracies in the databases in relation to cardholders. The rising cost of drugs within the GMS scheme is also having a significant impact.