Lithium is used for mania and bipolar disoder.

Lithium works by suppressing the abnormal and excessive activity of the nerve cells in the brain.

Tremor, Slurred speech, Uncoordinated body movements, Nausea, Acne, Increased white blood cell count, Memory impairment, Hair loss, Enlarged thyroid gland, Skin rash, Increased thirst, Weight gain, Polyuria, Diarrhoea

• Your doctor may ask you to continue Lithium for a long time. You must not stop taking it or change the dose, without speaking to your doctor first.  
• If you miss a dose, take it as soon as possible. If it is within 4 hours of the next dose, skip the missed dose (about 6 hours in the case of extended- or slow-release preparations). Never double up doses.  
• Despite your inconvenience and discomfort, your Lithium blood levels, thyroid function, and kidney function need to be monitored as long as you take Lithium.  
• During treatment with Lithium, it is recommended that you drink about 2 to 3 liter of fluid daily and use normal amounts of salt. Inform your doctor if you start or stop a low-salt diet.    
• Avoid sudden change in your diet or fluid intake. If you do go on a diet, your doctor may need to increase the frequency of blood tests.  
• Do not start any medicine including herbal or ayurvedic without telling your doctor. As it may significantly change the Lithium levels.
• Caffeine and alcohol act as diuretics and can lower your Lithium concentrations.  
• If you engage in vigorous exercise or have an illness that causes sweating, vomiting, or diarrhoea, consult your doctor because these might affect Lithium levels.  
• Nausea, constipation, shakiness, increased thirst, frequent urination, weight gain, or swelling of the extremities should be reported to your doctor. Your doctor may adjust the dose.
• Blurred vision, confusion, loss of appetite, diarrhoea, vomiting, muscle weakness, lethargy, shakiness, slurred speech, dizziness, loss of balance, inability to urinate, or seizure could indicate severe toxicity and should prompt immediate medical attention.

Ques. Q. Can I take Lithium for depression, anxiety?
Lithium can be taken to treat depression and anxiety. Do consult your doctor before use

Ques. Q. What can I take with Lithium for a headache or pain?
Acetaminophen or aspirin can be taken with Lithium for headache or pain. Do consult your doctor before use

Ques. Q. Can I take lithium with ibuprofen, Prozac, Paxil, Zoloft, Benadryl?
Lithium when taken with ibuprofen, fluoxetine (Prozac), paroxetine (Paxil), sertraline (Zoloft) or Benadryl can lead to increased side effects. Do consult your doctor before use

Ques. Q. Does Lithium cause weight gain, acne, constipation, make you tired or make you high?
Lithium can cause weight gain, acne, constipation, make you tired. Lithium does not make you high.