If that does not work, then you probably need a prescription for
Zofran which blocks the nausea and
vomiting (which is caused by the drugs). Many of us used Zofran. It works very well for most of us. I took 8 mg every 8 hours for a few months.
Don't let this go. It will snowball. If the phenergan does not work, then ask for Zofran. Zofran does not make you sleepy. Phenergan does. Phenergan is cheaper, but Zofran works better (in my opinion). It is used to treat the nausea from Chemo.