Does lisinopril for blood pressure cause weight gain?

Rare issue: While anyone can have any adverse reaction to a drug, in general Lisinopril and other ace inhibitors do not cause weight gain as a side effect. However, some large studies have seen a relationship. The question is whether the association means that the drug caused the weight gain or is the weight gain from something else. One cause of gain is congestive heart failure, so may need to be checked out.