Hi and thank you so much for this query.

I am so sorry to hear about your long term battle with bipolar disorder and the recent inability to loose weight while on lithium.

One of the side effects of lithium use is weight gain. From the information you have provided, this seems to be the main contributing factor to your difficulties to loose weight while on this drug. Stopping this drug would have been the best thing to do but not when it is clearly of benefit to you. Lithium also is one of the best drug out there for this disorder and because it has been working good for you, we shall not even want to switch over at this time.

Clearly, this makes loosing weight very difficult. This does not mean that you cannot loose weight but simply that you would need to work harder than before to obtain a similar result. Weight loss is assured through diet control principally, alongside physical exercise. In summary using more energy than we actually take in helps loose weight. With this plan, you may still gain some extra weight but not as much as you have now. I believe with intensification of the diet and physical exercise, you will be able to loose a few more pounds.

Also, lithium can cause low thyroid function which itself is a cause of increased weight gain. Have you been feeling very tired, become a hater of cold temperatures, slow, feeling unable, always sleepy? These may point to hypothyroidism and if you should have them, then consider getting your thyroid evaluated.

In conclusion, it is not all your fault. Your drug seems to be contributing. You need to double your efforts to achieve the same results as before when you were not on drugs. Courage and get going.

I hope this helps and provides enough information and guidance for you to act on. If there are any more questions you would like me to address, please let me know so that I can provide responses to. I wish you all the best.
Dr. Ditah, MD

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