In order to help ensure a safe treatment process with lithium, risks associated with the medicine should be discussed with your healthcare provider ahead of time. It is important to know that it is possible to develop
lithium toxicity during treatment. Some people may be at a higher risk for this problem, such as those with kidney disease,
heart disease, or low sodium levels in their blood.
You should let your healthcare provider know if you experience any side effects while taking this drug. Many side effects are often signs of lithium toxicity. Some of the side effects that may indicate mild to moderate lithium toxicity include increased or frequent urination, drowsiness, vomiting, and muscle weakness.