Yellow Xanax bars are a popular form of Xanax, a benzodiazepine medication used to treat anxiety and panic disorders. They feature the characteristic yellow color with "R039" imprinted on them. These bars have become increasingly popular on the street due to their strong sedative effects and ability to induce feelings of relaxation and euphoria. However, misuse of these drugs can lead to addiction, overdose, and even death. It is important for individuals prescribed Xanax or those considering using it recreationally to understand the potential risks and consequences associated with its use. Always consult with healthcare professionals before taking any medication, including Xanax.