https://www.drugs.com/drug-shortages/promethazine-injection-654 An update for those on ZAP PROTOCOL zofran the generic name is ondansetron & phenergan- generic name is promethazine are the meds in the protocol. If this is your antiemetic protocol to allow you to keep yourself at a thriving existing life mode? Let me share what I was told today. Both my IV pharmacist & palliative care Dr told me the shortage should resolve & it was not a situation of phase out. I cannot use compazine so I was experiencing mild anxiety with this 3+ week back order shortage of the promethazine. Then the link given didn’t inspire confidence in the remaining pharmaceutical companies continued distribution. But I feel much better about the situation now.