I take lithium 900 mg (3 pills of 300 mg) at night before sleep. Is it OK to take them all in one time? What is the maximum dose of the drug? Is it better to divide the drug twice? Once in the morning and once in the evening? Will it have a greater impact on bipolar disorder? Will it get me down if I take the drug in the morning? At the moment I do not feel any improvement at all from the drug. Thanks in advance.