Hello and thank you for using HCM.
I carefully read your question and I understand your concern. I will try to explain something and give you my opinion.
We talk about hypertension if we have mean values that exceeds 140/90 mmHg.
The hypertension is divided in two groups : the
essential hypertension without an identifiable cause, usually in older ages and
secondary hypertension meaning that is a secondary cause of it. This is diagnosed in young ages and the cause might be renal, endocrine ect.
As you are 56 years old i think we are dealing with essential hypertension. This is a chronic disease, it has not a definite cure but it should be treated all life long. This means that you don't have to take the medicine just for one month, because if you stop it, the blood pressure will rise up again.
The fact that the doctors prescribe it just for one month is that you have to monitor your values during this time and maybe after one month you can discus with the doctor about the dosage. If you have to continue with the same dosage, arise it or add another medicament or not, but not discontinue it.
Along with your medical treatment, i advise you to have physical activity, walking 40 minutes a day and reduce your salt intake because it rises blood pressure.
Hope I was helpful. Wish you good health.
Best regards.