I presume cough
was due to an ACE inhibitor
. It is not for Answers to tell your cardiologist what to do. There are a number of Antihypertensives that don't lower pulse rate, ACE2 drugs don't cause cough or lower pulse, old fasioned calcium channel blockers like nifedipine
raise pulse, but this might not be desirable either. Diuretics, if he is not already using one lower BP and may reduce breathlessness.