Researchers at the University of Michigan have developed a mathematical model that reveals how our circadian rhythms can have dramatic impacts on how our bodies interact with medicines.

Naloxone has long been hailed as a life-saving drug in the face of the opioid epidemic. But its capacity to save someone from an overdose can be limited by the potency of the opioid — a person revived by naloxone can still overdose once it wears off.

President Donald Trump said U.S. military strikes on five Venezuelan boats have saved more than 100,000 lives because the maneuvers thwarted drug smuggling.