What is the type of action associated with full agonist opioids?

Full agonist opioids are characterized by their ability to completely activate opioid receptors in the central nervous system. This activation causes a full range of pharmacological effects, which include not only pain relief but also possible side effects such as euphoria, respiratory depression, and sedation. By stimulating these receptors to their fullest extent, full agonists provide potent analgesia.

The nature of full agonists distinguishes them from partial agonists, which only activate the receptor partially and elicit a reduced effect, and from antagonists that block the receptor entirely without producing a significant response. Thus, the definition of the action of full agonist opioids centers around their ability to maximally engage the receptors, resulting in a strong therapeutic effect in pain management.