Hi well come to Hcm.
a calcium chhenel blocker is totally safe to use for years to gether. Its
mainly used to control heart rate
and in ischemia
. as anti hypertensive its use
is limited because of weaker effect. But in your case no need to change the drug
if your parameters like pulse and bp are ok with it and you are comfortable with it.
Its not hard to stop it or to switch over to other drug you can easily switch over to
other drug intially there might be rise in pulse rate but other wise nothing will happen.