Buy R039 Yellow Xanax bar as a two-milligram tablet of Alprazolam medication. These based on in rectangular bar-shaped and come in yellow color with three indents on them. People can break the pills into four equal 0.5mg Xanax doses for ease of use. Yellow Xanax bars R039 are a popular type of medication. It belongs to the benzodiazepines class category which helps people reduce their anxiety and stay calm. Buy Yellow Xanax Online/ Yellow Xanax Online/ Order Yellow Xanax/ Yellow Xanax Buy At Cheap Prices/ Without Prescription Buy Yellow Xanax.