A class of drugs derived from the opium poppy plant or synthetically produced, known for their analgesic (pain-relieving) properties.
Relief from pain without loss of consciousness, often achieved through the use of opioids or other pain medications.
A term historically used to describe opioids, but now often used more broadly to refer to any controlled substance with potential for abuse.
Natural chemicals in the body that act as neurotransmitters, producing feelings of euphoria and helping to modulate pain.
Protein molecules on the surface of cells that bind with opioids, leading to various physiological effects, including pain relief.
A substance that activates a receptor to produce a biological response, such as opioids binding to opioid receptors to induce pain relief.
A substance that blocks or inhibits the effects of another substance, such as opioid antagonists used to reverse opioid overdose.
The widespread and increasing misuse, addiction, and overdose deaths associated with opioid drugs, recognized as a public health crisis.
A medical condition characterized by the problematic use of opioids, leading to significant impairment, distress, and the inability to control use.
The body’s reduced response to a drug over time, requiring higher doses to achieve the same effects.
A physiological adaptation to a drug, leading to withdrawal symptoms if the substance is suddenly reduced or stopped.
A set of physical and psychological symptoms that occur when an individual dependent on opioids stops or reduces their use.
A natural opioid analgesic often used for pain management, derived from the opium poppy plant.