Half a pill

Starting taking those blood pressure pills the doctor prescribed me some weeks ago. Today I talked to a paramedic I know and she tested the pressure without me having to go to the doctor and be charged half a leg. Good girl. Only turned out I still have too high pressure. Not dangerously high but too high for my own good. And no wonder it is. The pills the doctor gave me are tiny, and I am only to take half each day. Gimme a big pill any day, the bigger the better right? Girl recommended me to talk to the doctor before upping the dose. No way. From tomorrow on I'm on a whole pill!