When taking Hydrocodone, the dosage matters a lot. This drug must be taken in a low dosage; otherwise, you might have severe health problems. A high dosage of Hydrocodone can lead to addiction and respiratory problems. The doctors prescribe this medicine to those suffering from moderate to severe back pain, neck pain, or other forms of bodily pain. The medicine is prescribed in low quantity and for a few weeks only. If it is taken for a longer time it will harm the body.