Hi! how is it that lamotrigine can cause/worsen suicide thoughts and mental health issues, but still help with depression in bipolar disorder?

Such warnings regarding medications for epilepsy are noted in the PI. These are relatively rare and paradoxical side effects and should not mitigate the use of the medication in psychiatric disorders.

many psych meds can have the opposite effect either as a result of a side effect or the way your body responds to them. Fortunately drugs like lamotrigine help much more often than the cause harm or else we would not use them