An Unusual Case of Serotonin Syndrome with Oxycodone and Citalopram

Table 1

Drug	Metabolised by CYP	Inhibits CYP
Citalopram	3A4 2C19	1A2, 2D6, 2C19 (weak)
Esomeprazole	2C19, 3A4	2C19
Oxycodone	3A4 (to form noroxycodone) 2D6 (to form oxymorphone)