I take OptiNate (click on the 'complete ingredients' on the left). I needed one with a stool softener (Docusate Sodium...same stuff that's in Colace) and compared these to many others (that are prescribed) and it seems these offered the most. They come in blister packs and you take two pills. One looks like a regular vitamin and the other is a fish oil/DHA supplement.
PRENATE.COM