Partial agonists are substances that bind to receptors in the body and activate them, but not to the full extent that a full agonist would. This means they can produce a weaker biological response compared to full agonists. They are often used in pharmacology to help manage conditions like addiction or pain by providing some therapeutic effects while minimizing side effects. One well-known example of a partial agonist is buprenorphine, which is used in treating opioid addiction. It activates opioid receptors but does so less intensely than full agonists like morphine. This property helps reduce cravings and withdrawal symptoms while lowering the risk of overdose.