Before starting to tell you about the yellow Xanax bar to subscribe onlinemedzonline to read daily news. Now before we move o ... n to the different kinds of Xanax bars and why they prove themselves to be useful, let us first discuss the drug Xanax. Basically, Xanax is the brand name of the drug Alprazolam and belongs to a class of drugs called benzodiazepines, which work as a central nervous system (CNS) depressant. This means that the drug is prescribed to treat anxiety and panic disorders as it works by depressing the working of a neurotransmitter called GABA (gamma-aminobutyric acid) and helps a person feel calm. Even though the drug is prescribed to treat anxiety and panic disorders, but it is suggested that the drug should be taken only when the situation causing anxiety or making a person feel panic goes out of control. Now we would like to introduce to the different kinds of Xanax bars:- Xanax is the name of the drug by which the drug Alprazolam is popularly known as and is generally prescribed for the treatment of the symptoms of anxiety and panic disorders, specifically generalized anxiety disorder. Each Xanax bar comes with its own special features and the color of each Xanax bar or pill depends on the manufacturer of the drug. Now you might be thinking that why we are trying to relate yellow Xanax bars with R039, then our answer is very simple. This is so because each Xanax bar has something different that differentiates it from the other Xanax bars. The same can be said for R039, which is actually the number imprinted on the yellow Xanax bar and is usually identified as the pill filled with the drug in the quantity of 2mg. However, there can be hazardous results of buying the Xanax yellow bar R039 from the street because the price of the drug might vary according to the vendor selling the drug. read more