I think it is generally pretty effective for most people. Science says it is roughly comparable to hycosine.
For me, I find that one Dramamine I (dimenhydrinate) pill is very effective at preventing motion sickness, but it will put me to sleep quite reliably a couple hours later. Two pills and I can play Unreal Tournament 2004 until I'm too tired to sit up. I'd be quite concerned though with 3 or 4 pills about hallucinations -- and from my understanding, the hallucinations you get on dimenhydrinate are not good.
Dramamine II (aka Less Drowsy), which is meclizine, is a little less effective but usually adequate, but still reliably makes me really sleepy the rest of the day.
Kwells (hycosine) is the least effective overall for me, but I can take a little more if I need to, and it does not make me drowsy at all. I would take original dramamine every time based on effectiveness if not for the drowsy part.
For me, I find that one Dramamine I (dimenhydrinate) pill is very effective at preventing motion sickness, but it will put me to sleep quite reliably a couple hours later. Two pills and I can play Unreal Tournament 2004 until I'm too tired to sit up. I'd be quite concerned though with 3 or 4 pills about hallucinations -- and from my understanding, the hallucinations you get on dimenhydrinate are not good.
Dramamine II (aka Less Drowsy), which is meclizine, is a little less effective but usually adequate, but still reliably makes me really sleepy the rest of the day.
Kwells (hycosine) is the least effective overall for me, but I can take a little more if I need to, and it does not make me drowsy at all. I would take original dramamine every time based on effectiveness if not for the drowsy part.