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Colin DavidsonThe Conversation |
Antidepressant tachyphylaxis describes the loss of a treatment response that was once effective. Here’s what scientists know so far.
Medetomidine, a veterinary sedative, is now turning up in heroin, diazepam and fentanyl across the UK and US.
Paraxanthine is the main metabolite of caffeine. Studies suggest it can boost alertness and focus, but the research base is much smaller than for...
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