There are other drugs which can be used for prohylaxis of headache. These are propranolol
, divalproex, flunarizine
, its recommended dose for headache prophylaxis is 75mg. But it can cause constipation
and sedation at this dose.
So i would advice you to take tablet divalproex 500mg every night. This may cuse light sedation but that wont be problematic. And it will help in your headache too.