Wellbutrin is actually prescribed as a weight control drug. It's been found in comparative drug studies to be just as effective for this purpose as more familiar weight-control medications. It's also known as one of the antidepressants that does not cause weight gain as a side effect - many others that act in a different way, like celexa, may lead to weight gain as a possible side effect, as has happened to you.

Like Judy, I haven't heard that wellbutrin would stop the weight gain caused by another antidepressant. It's usually prescribed if a person's depression isn't responding well to celexa, or another drug of that class. Combining the two often leads to better relief from depression. It's important to keep track of problems like headache, but I'd give the drug combination a little more time to work - it usually takes a few weeks before these reach a level in the blood that can affect depression.

I'm puzzled, though, about adding wellbutrin if celexa was already taking care of depression. You might want to get a second opinion - especially if your doctor is not a psychiatrist but a primary care provider. Psychiatrists have much more training and experience with these drugs.