Tapentadol 100mg is a pain reliever that is used to treat moderate to severe short-term pain (such as pain from an injury or after surgery). It belongs to the opioid analgesics class of medicines. It alters how your body feels and responds to pain by acting on the brain.   Topdol 100mg (Tramadol) is an opioid analgesic that includes the active ingredient Tramadol. It is used to...