Thank you for your question.
I am Dr Saha, I shall try my best to help you.
The level considered to be a crisis is any level of 180 / 110 mm Hg.or above.
His diastolic blood pressure or the lower number is ***** high.
At this level the risk of complications like stroke, heart attack etc. from hypertension is increased.
I would suggest to consult doctor without delay or go to ER.
Other blood pressure medicines from different group can be added.
Often water pills or diuretic is added.
This help to minimize the risk of side effects from increasing doses of one medicine.
Often combination of medicines help.
I hope this information helps.
If there’s anything else I can do, please let me know.
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