No there should be another drug given to you.. I was prescribed 3 two were taken within the first two days (my hospital keeps patients for the night - and we are on IV the entire time - helps support the kidneys and hydration.) the third was a breakthrough nausea medication for any time use - I want to say dexamethasone - but I can't remember - Ativan is a sedative - anyone else on the board know why they were prescribed for break through nausea? I would talk to your mo. Hugs - every day is a step towards the end of treatment.