Pizotifen side effects

[Phoenixfly]

Can anyone tell me how long their side effects lasted?
My ds is 12 and started with migraines last year.
He started taking pizotifen a week ago, and the next day complained of a bad headache (no nausea, aura etc). It's a bad headache and has been going on for a week.
Can't speak to migraine prof until Wednesday.

My dd has been on it since she was 12. She’s 28 now. No side effects at all.

Thanks @bizzylizzy87
The migraine nurse asked that we leave things as they are for now, and we'll get some info from the professor by lunchtime tomorrow.
I just feel like a week is such a long time for a bad headache.