Medics still use morphine to relieve the pain of wounded soldiers on the modern battlefield, but have to watch out for morphine reducing breathing and blood pressure to dangerous levels. That may all change with a DARPA-backed combination drug that has successfully limited morphine delivery when it detects low blood oxygen levels.
The drug relies upon nanotech particles that carry both morphine and its antagonist, known as Naloxone. That creates a self-regulating feedback system where Naxolone only activates to suppress morphine when blood oxygen levels drop too low.
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