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A 55-year-old man misused doxepine and developed mild tachycardia after its abuse and dependence.
The man, who had underlying type 1 bipolar disorder as well as cocaine and alcohol use disorder, was admitted to the medical ward for rhabdomyolysis due to his cocaine use. He also had a significant history of 2 prior suicide attempts, over 100 psychiatric hospitalisations and HIV infection. He started receiving therapy with doxepin 200mg [route not stated] along with lithium. On the day of admission, after inhaling an unknown amount of crack cocaine, he contemplated overdosing and presented to the emergency department (ED) voluntarily. In the ED, he reported about reduced sleep for...