nausea/vomiting
"Was given this drug while pregnant for morning sickness. Didn't help at all, gave me a headache and actually made me throw up a few times. My son was also born with a genetic mutation - Epidermal Nevus syndrome which I'm sure is from the Zofran as it is not approved for use during pregnancy. If I could go back in time I would NOT have used this during pregnancy.
I was also given this drug several times for gastroenteritis with the same result - headache and increased vomiting. 
Did not work for me."