On the other hand, there are analgesics that are commonly associated with anti-inflammatory drugs but that have no anti-inflammatory effects. An example is paracetamol (known as acetaminophen or Tylenol in the U.S). As opposed to NSAIDs, which reduce pain and inflammation by inhibiting COX enzymes, paracetamol has - as early as 2006 - been shown to block the reuptake of endocannabinoids, which only reduces pain, likely explaining why it has minimal effect on inflammation; paracetamol is sometimes combined with an NSAID (in place of an opioid) in clinical practice to enhance the pain relief of the NSAID while still receiving the injury/disease modulating effect of NSAID-induced inflammation reduction (which is not received from opioid/paracetamol combinations).