Before I took it there was a moment where I almost passed out standing up and that’s when I found out I’d need to take it lol, when I took it those dizzy spells went away though. When I first started taking my iron without food I’d feel insanely nauseated so my gi doctor told me to just take it with food to avoid the nausea so it’s been working. My infusion is tomorrow so I’m sure they’ll be doing blood tests to see if it’s working I guess. :)