What are the possible side effects of Lithium?
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Stop taking lithium and call your doctor at once if you have any of these serious side effects: extreme thirst, urinating more or less than usual weakness, fever, feeling restless or confused, eye pain and vision problems restless muscle movements in your eyes, tongue, jaw, or neck pain, cold feeling, or discoloration in your fingers or toes feeling light-headed, fainting, slow heart rate hallucinations, seizure (blackout or convulsions) fever with muscle stiffness, sweating, fast or uneven heartbeats; 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 thi