While pizotifen is effective in adults, evidence of efficacy in children is limited, and its use is limited by side effects, principally drowsiness and weight gain, and it is usually not the first choice medicine for preventing migraines, instead being used as an alternative when other drugs have failed to be effective. It is not effective in relieving migraine attacks once in progress.
Pizotifen is effective in adults but its use in children is limited due to a lack of evidence and side effects like drowsiness and weight gain. It's usually not the first choice for preventing migraines, used only when other medications have failed. It doesn't help with ongoing migraine attacks.