I do understand your concerns.
studies have shown the night time high Bp is a risk factor for heart attack and stroke.
Hence, the BP should be kept below 150 systolic and 90 diastolic at night time all the time.
You are taking metoprolol, losartan also can be taken at night time before going to bed for better action.
I will suggest you to get a kidney function test as renal causes often result in resistant hypertension.
If kidney function is normal, then your hypertension is considered primary hypertension without any identifiable cause.
You should be on a diuretic like chlorthalidone daily as well.
This lowers resistant hypertension which is often due to thevolume overload.
Meanwhile you can start clonidine if your blood pressure does not come down within an hour.
Make sure your pulse or heart rate should be above 60 beats per minute as clonidine also lowers heart rate.
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