Nausea with out vomiting
, you need not take ondasetron. Its indicated only in vomiting purpose.
Try to identify the cause, possible allergy
Try to relax and get fresh air. If you are taking any medications, check whether they could cause nausea. Try to eat regular food with fiber rich diet. You can try certain refreshment drinks or do some other activity to take you mind of nausea.
If none helps try some antiemetics like Domperidone
. Get a prescription from your doctor if nothing above works. It should help. Try to avoid driving when you take cinnarizine.
Identification of cause is paramount.
Hope I have answered your query. If you have any further queries, happy to help