Aspadol 100mg is a brand name for Tapentadol, a medicine used to treat moderate to severe acute pain. Tapentadol is an opioid pain medicine that, like morphine, works on the central nervous system to reduce feelings of pain. Tapentadol should only be used as recommended by the doctor, as it can become addictive and lead to side effects such as dizziness, nausea, constipation, and sleepiness. It is often utilized after other pain therapies have failed to provide enough relief. If you've been given Aspadol 100mg or Tapentadol, be sure to carefully follow your doctor's recommendations and report any serious side effects right away.