Fyi
I had been searching the web for anyone's experiences on this. Been prescribed Topamax for migraines for 15 months now - extensive experience with LSD although I hadn't used it in some time. I recently had the chance to acquire some and wanted to see if anyone had any adverse affects on the two used together before hand so I looked about, couldn't find anything, tried it anyway. Personally I noticed no difference in the effect of either. Your experience may vary.