"i took carbamazepine for 4 days but could stand it no longer. i felt very ill, had sinus pain, runny nose, headaches and feeling so ill i had to go back to bed every day. by day 4, i was feeling like i had &#039;flu and, after reading the advice leaflet, decided this medication is not for me.  i do react badly to a lot of medication, so it is not surprising that this one also was a no go for me. i&#039;m in the uk and am over 60, so my meds are free."