Mefloquine
"Took them a week before a 10 day trip to Ghana and continued the 4 weeks after. 
Noticed a slight dizzy feeling but more like a mellow buzz as If I've had a gin & tonic the day after which seemed to come and stay a few days after the weekly dose.
Did not notice anything else and the other side effects I have had with Malarone and Doxycyline (Fatigue, headaches and slight nausea) were not present at all.

No strange dreams of vertigo as may others have described."