spadol Tablet is a brand name for a medication containing tapentadol hydrochloride. Tapentadol is classified as an opioid analgesic. It works through a dual mechanism to relieve pain. First, it binds to mu-opioid receptors in the brain and spinal cord. This action helps block the transmission of pain signals. Second, it inhibits the reuptake of norepinephrine. Norepinephrine is a neurotransmitter that plays a role in modulating pain pathways in the central nervous system. This dual action may provide more comprehensive pain relief compared to opioids that only target opioid receptors.