"surprised"

I attended the clinic for bad depression, anxiety and ocd. 1st visit went well and so did the second. I was than prescribed some medication which I was told to take in the morning and not night time and that they were not sedating medication. I collect my medication to find it's completely opposite to what I was told. It is night time meds and very sedating. Those type of tablets do not suit me at all. I'm a zombie on those. How can a dr mess up like that. I'm awaiting a call back to sort my meds out asap as should have started them today.