Instead of stabbing yourself, or someone else, in the thigh with a needle to deliver a dose of adrenaline to counter anaphylactic shock, would it not be easier to use a nasal spray instead?

Adrenaline delivered with liquid or powder nasal sprays is as effective, and sometimes even better, than injected adrenaline, an evidence review found.

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A new systematic review shows that nasal spray adrenaline can be as fast or faster than injections for treating anaphylaxis ...