One of the most talked-about, and often misunderstood, substances on the market today is something called a Hulk Bar. Also referred to as green Xanax bars, Hulk Xanax, or the green monster Xanax, these pills are part of a dangerous and growing trend involving counterfeit prescription drugs. Xanax bars are produced in various colors, such as green and yellow, which indicate different strengths and manufacturers. These colors, along with specific pill imprints, are used to identify authentic medication and differentiate between dosages. Green Xanax, when it is made legally, is alprazolam. Alprazolam is a benzodiazepine that is commonly prescribed to help people who struggle with anxiety or panic disorders. Green Xanax refers to a version of alprazolam , the active ingredient in all brand-name and generic forms of Xanax. Alprazolam is a benzodiazepine (or benzo for short) prescribed for anxiety and panic disorders. Most green Xanax bars contain about 2 mg of alprazolam, which is considered a high dose. Learn about green Xanax, including whether it is fake, what other substances could be in it, and where to seek help for drug addiction. In this article, we’ll detail everything you should know about green Xanax, including its risks, side effects, and signs of addiction. Read on for all the details. A green Xanax bar is similar to both the white and yellow bars in that each green bar contains 2 mg each. The main difference is that a green alprazolam bar can be split into three segments, while the white and yellow both have four. What Are Green Xanax Bars? Green Xanax bars are green-colored Xanax pills that typically contain alprazolam, a benzodiazepine tranquilizer used to treat anxiety disorders and panic attacks. They are nicknamed “ Hulk Xanax ” due to their green color and high potency. Green rectangular bars typically contain 2 mg of alprazolam. The pill with imprint S 90 3 (Green, Rectangle, 15 mm) has been identified as Alprazolam 2 mg and is used for Anxiety, and Panic Disorder. It belongs to the drug class benzodiazepines and is classified as a Schedule 4 controlled substance.