Good evening everyone! I have low hemoglobin and ferritin, diagnosed w…

Good evening everyone! I have low hemoglobin and ferritin, diagnosed with anemia. The doctor referred me to an outpatient department for IV drips. Tomorrow will be my first time, how does it all work? I've never had IV drips before? And it was surprising that the doctor from the outpatient department said they don't have drugs and I need to buy ampoules myself... My sister at her local clinic didn't buy anything, they provided them there for IV drips. Do you guys get them free or do you buy them yourself? They have saline solution, they say we don't need to buy it ?