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Ondansetron

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Missed Dose

Try to take each dose at the scheduled time. If you miss a dose, take it as soon as you remember unless it is near the time for the next dose. In that case, skip the missed dose. Take your next dose at the regular time. Do not double the dose to catch up.

Overdose

If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call 1-800-222-1222. Canada residents can call 1-844-764-7669.