What's an iron??
I'm sure food makes the medication process slower. I'm almost incline to think of something admistered by an inhalant....medicines that are quickly absorbed directly into the bloodstream??? That would effect the TIME element. I'm only thinking that because we've reviewed the other options; liquid, pills, suppository. I'm going to do a little searching on the subject.
I'm not sure. There's this pointy thing with a handle on it in my laundry room. That might be one.
LOL, it's that funny shaped thing, gathering dust in the laundry room :-D