Hi, My Name Is Dianne - I Am 63 Yr

Hi, my name is Dianne - I am 63 yr old and have a fluctuating heart rythym...... I was on Corolan for 7 yrs and then starting to react to it by having anxiety attacks" I was then prescribed verapamil which worked wonderfully, now this is not produced anymore............ my gp has put me on oxazepam tabs but I am finding these only make me dopey, and my heart rate is still fluctuating between 75 and 125 depending on what I am doing....................... I'm trying to look for an alternative to verapamil ................