Like other phenanthrene derivatives, dihydrocodeine is especially metabolised inside the liver with the resultant metabolites being excreted primarily during the urine.Vi?c s? d?ng ??ng th?i opioid v?i thu?c an th?n nh? benzodiazepin ho?c các lo?i thu?c t??ng t? t?ng nguy c? an th?n, ?c ch? hô h?p, hôn mê và t? vong do tác d?ng ?c ch? th?n ki