I don't know if this is the best place to put this question, but i thought it might fit best here.
I have taken Immodium AD twice in the past month or so. The first time i did, my heart rate went through the roof. Where i normally might ride up a given hill at 145-150 that day my HR was 177. It stayed high and on a flat road, when i was riding at 12 mph (i was taking it really easy by this point) my HR was in the 130s -140s.
The next time i took it my HR seemed okay, but my legs had zero strength. Riding the bike at all was just misreable, and had i not been riding home from work and been 15 miles from home i'd have stopped. My arms seemed weak, too.
I'm not saying this was caused by Immodium, but i wonder if anyone else has experienced something similar. It could easily be the bad days were caused by the 'situation' that caused me to take the stuff. Or maybe it's something to avoid if i want to ride.
I'm just wondering.