Australian prescriber:
Pyridoxine 25-50mg up to qid
If ongoing symptoms then continue above and add in:
doxylamine 12.5-25mg at night and increase to 12.5mg morning and afternoon, 25mg night if not too drowsy
or metoclopramide 10mg tds

No satisfactory response : ondansetron 4-8mg 2-3 times per day