Normally, the calcium channel blocker therapy is appropriate treatment. But as you mentioned, it can affect the heart rhythm.
Tricyclic antidepressants such as trazodone and imipramine are also considerations and normally tried if calcium channel blockers cannot be used. Nitrates are also used as second line.
Investigational therapies like botulinum toxin injection can also be considered.
These options can be discussed with your personal physician.
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Kevin, M.D.
kevinmd_