Is erectile dysfunction a side effect of taking clomid (clomiphene)?

No, unless . . .: Clomid (clomiphene) tricks pituitary into releasing more lh which stimulates leydig cells into producing more testosterone. Of course, this is off-label use but difficulty is that it's very difficult to adjust ; fine tune appropriate dose, since it only comes in one size. Anyway, if you produce or take too much t, it will be wasted ; converted into estrogen which can decrease libido ; cause ed.