Most of the US population suffers from lower back pain. To treat such medical conditions, people buy Tramadol online. It is an oral medication accessible in both immediate and extended-release forms. This medicine is also accessible as an extended form that is released into the body slowly over time. The immediate forms of the medication begin to work in the body quickly. Both extended and immediate-release forms of the medications are accessible as the generic form and the brand version. The brand version of Tramadol is accessible in various names such as ConZip, Ultram, etc. The brand version is generally more costly than the generic forms of the medications, and there may difference in dosages and forms of medicines.