Naloxone can reverse an overdose in minutes, but exactly how it does this at the molecular level has previously been unclear.
Articles on opioid receptors
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Unlike opioid drugs like morphine and fentanyl that travel throughout the body, the opioids your body produces are released in small quantities to specific locations.
Carfentanil is an ultra-potent synthetic opioid. Its only legitimate use is in veterinary practice for large animals such as elephants, but it sneaks into heroin shipments to increase its potency.
