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Heba GhazalThe Conversation |

Urology departments in England and Wales have seen an increase in users admitted for bladder inflammation caused by ketamine use.
Long-term melatonin users were about three times more likely to develop heart failure, but the link may not be what you think.
Veterinary drug medetomidine spreads through illicit opioid supply.
Birch pollen is one of the most common hay fever triggers.