Dimenhydrinate and Cinnarizine

So I have been recommended the above on separate occasions, I actually took cinnarizine for a while and it did provide some relief but I also understand this is only a temporary solution as you are not supposed to stay on them for a long period…? For all the drugs I’ve tried, cinnarizine is about the only one that seemed to improve my symptoms. What are peoples experiences with these drugs and general knowledge?