Greetings. I Am Now 65, And Have Been Taking 10mg
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Detailed Answer:
Hello
Welcome To Ask A Doctor Service
I have gone through your question, I understand your concern.
Actually antihypertensive medicines reduces blood pressure in different patients differently.
Effect of antihypertensive medicine changes with age of the patient and weight of the patient and sometimes body's response to the antihypertensive drug.
For example for you lisinopril 10 mg was working adequately initially, but it may not work in other individual similarly.
Means this medicine was working properly for you initially but now with changing age or changing body response to the medicine, this drug is not able to control your blood pressure.
There is nothing to worry about.
Usually in many patients this happens.
Your doctor has rightly added the medicine and yes with time dose and frequency of medicine may change to control your blood pressure.
Antihypertensive medicines are of different classes.
Lisinopril is ACE inhibitors class of drug.
While metoprolol is beta adrenergic blocker.
So when to different classes of drugs are used, better antihypertensive effect is seen.
I hope your query is clear now.
Thanks and regards
Dr Diwashish biswas