Is Losartan Potassium Advisable For A Anemic Patient?

I was prescribed Losartan Potassium 50 mg. but I have so many problems taking medications, that I would like to cut one in half and try that the first time I take it, to see if I have any problems with it. I had been on Lisinopril 10 mg. and had terrible side effects from it, and I have had problems with medications for other things also. I was diagnosed with anemia last week, but the Dr. has been out of the office, so I am to call them tomorrow about that, though there was no blood in the fecal test I did. Anyway, I was to start the Losartan last week, and kept putting it off, but thought maybe I would try it tonight. I just don t want to take the full dosage, but I don t know if that is OK or not. I could wait and ask the Dr. tomorrow, but I have had headaches the past few mornings when I woke up, so I thought perhaps I shouldn t wait another day. Thank you.