GREY:1,2,4 on recommendation of pain clinic if patient is intolerant to both morphine AND oxycodone
MHRA January 2019: Tapentadol may increase seizure risk in patients taking other medicines that lower seizure threshold, for example, antidepressants and antipsychotics. Serotonin syndrome has also been reported when tapentadol is used in combination with serotoninergic antidepressants.