Well, I have not seen evidence which shows reversing build up, but there is evidence to suggest it can be stopped in its tracks, preventing further buildup. Is your husbands cholesterol particularly high? If it is very high, then I suggest he takes the lipitor, if not, then a strict healthy diet can be as good. Blood pressure is another key factor in the buildup of plaque, it must be kept normal which again may take medication such as ace inhibitors. There are other risk factors which must be addressed, such as no smoking, avoiding as much stress as possible and regular exercise. Anything above 70% is seen as severe so your husband is on the borderline and can be controlled with medication. If he is having symptoms from lack of blood flow, then it would be wise to have a beta blocker medication which will prevent his heart from working too hard.