Actual halflife of Vraylar?

I have seen that the active metabolite DDCAR can have a half life of 1-3 weeks. How much of Vraylar is DDCAR? I only took 3 1.5mg doses and it reacted horribly with my clozapine. I had really bad headaches. My doctor wanted me to take them together before weening off clozapine. I am still feeling some headaches at night and I'm wondering when it will go away. It has been 3 weeks.