Hi there,
Thanks for your query.
Firstly, ACE inhibitors- and not Beta-Blockers- cause 
cough. You can therefore take ARBs (
Angiotensin Receptor Blockers), such as, Temlisartan or 
Olmesartan, which do not cause cough. ARBs + Beta Blockers is an ideal combination and should be taken with at least 2 hours' gap between the two.
However, you may first try to keep a gap of 2-3 hours between 
Norvasc and 
Hydrodiuril. If the symptoms persist, you should switch over to ARBs + Beta-blockers.
I assure you that the symptoms will disappear, if drugs are taken as advised.
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Take care
Dr. Rakesh Karanwal