i took it for about 14 mths for svt ,and i found it to be ok ,there are better ones for svt ,like neiblet{nebivolol} which is a more selective
for the heart ,but
inderal is known to be good
for migraine as well...for the first few weeks just watch standing up quick and things like that ,it is better started on a low dose and moved up as needed,,but apart from that it seems to be well tolerated by most.