Lisinopril 10mg To 5mg, Back To 10mg

I've taken 10mg Lisinopril with success for 9 days. Lowered my BP from 140s/90s to low 100s/low 70s. But on days 6-9 my BP was going down to 98/65 different times of the day, with some slight lightheadedness, no coughing. I was worried it would keep trending lower, especially while sleeping, and cause more dizziness. So my Dr gave me a 5mg RX. One day on that dose and I already noticed my BP going higher (High 130/high 80, low 90s). Now that I know I get better readings with 10mg I want to switch back. So my question is, is it ok that I went one day with 5mg and will go back to 10mg the next day? I was going to take another 5mg 12 hrs after my first dose but wasn't sure if that was ok?

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It really takes about 4 to 5 weeks, at one steady dosage, for Lisinopril to reach its full level of effectiveness in the body to see how well it will work for you. Since you were starting to go a bit too low on the 10mg dose, it might be best to stay with the 5mg dose for awhile, and see how much it helps you, unless your doctor directs otherwise.

Fluctuations in your blood pressure are normal, and how severe the change is depends on what you were doing just before you checked it. For example, if you engaged in some form of exercise, right before checking it, even just walking around your house, or going up/down some stairs, it will be elevated. When resting, and relaxing, it should be lower. The dizziness, and feeling lightheaded could be due to either a low drop, side effects of the medication itself that may need time to taper off, or do to a sudden drop if you stood up too fast and experienced orthostatic hypotension.

That why, when your doctor checks at an appointment, they usually do so, after you've been sitting quietly for awhile, this gives them a good baseline reading of where your normal blood pressure levels fall. The normalcy of the changes that can occur, for various reasons, is also why medications aren't usually prescribed for someone that has just had one random elevated, or lowered blood pressure reading, unless it's found to be hitting dangerous levels.

Ref: Blood Pressure Information

Are you on any other medications? What does your normal diet consist of?

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