Tramadol acts through two primary mechanisms: mu-opioid receptor agonism and inhibition of norepinephrine and serotonin reuptake. By binding to mu-opioid receptors, it inhibits the transmission of pain signals, providing analgesia. https://hub.alfresco.com/t5/abuse/buy-tramadol-100mg-online-usa-free-shipping/td-p/330133