Resistance to Antimicrobial Agents

The main reason for the current unsatisfactory situation is that, worldwide, there is no effective regulation of the use of antibiotics. In many nations drugs are freely available "over the counterî and even in countries where most drugs are only available on prescription there may be little control. The practice in some societies of doctors prescribing the most potent drug available just in case may be leading to resistance to drugs which for some infections are the final barrier before they become untreatable.