All I can tell you is I am on Lithium Carb and it makes me sleepy and I am on 900 mg so I take 3 pills. But because they make me tired doc said to just take all 3 at bedtime. But I am getting off of Lithium cuz it didnt work for me. I started it about 6 months ago and the last 3 months I have been in a bipolar depressive episode that slowly got worse. I never heard of that other Lithium supplement but I would be very careful taking something your doc says not to take. But then again, if your just taking that and not the Lithium Carb it may be ok. Just don't wanna take too much of it and get to a toxic level. Maybe you should start a mood diary to keep track of how your feeling and if your not noticing a positive change then ditch it and get back to Lithium Carb. At least if your taking that, your doc can raise dose carefully, and have you give some blood to check the levels every couple months cuz you can't get too high. Lithium toxicity is nothing to mess round with. Please be careful