or
early signs of lithium toxicity, such as
nausea, vomiting, diarrhea, drowsiness, muscle weakness, tremor, lack of coordination, blurred vision, or ringing in your ears.
Less serious side effects may include:
mild tremor of the hands;
weakness, lack of coordination;
mild nausea, vomiting, loss of appetite, stomach pain or upset;
thinning or drying of the hair; or
itching skin.
This is not a complete list of side effects and others may occur.