Active Ingredient

Lithium

Lithium is a medication used to help stabilize mood. It is often prescribed for individuals with certain mood disorders.

This medication can be an important part of treatment plans, especially for managing symptoms associated with mood swings.

Written By Douglas C. Goldberg, MD

Reviewed By Philip Schein, MD

Last Updated 28 Nov 2025

Available Lithium Brands

Lithium

Strengths 150 mg, 300mg

Lithium Uses

Lithium is commonly used to manage mood disorders and help prevent mood swings.

Treatment of bipolar disorder
Prevention of manic episodes
Management of depressive episodes in bipolar disorder
Stabilizing mood in long-term treatment plans

How Lithium Works

Lithium works by affecting the flow of sodium in the body’s nerve and muscle cells. This helps stabilize mood and reduce extremes in behavior.

It influences the balance of neurotransmitters in the brain, which are chemicals that help communicate signals between nerve cells.

By doing so, it helps to control mood swings and other symptoms associated with mood disorders.

Common side effects of Lithium

Not everyone experiences side effects with Lithium, and many side effects are mild and temporary.

Nausea
Increased thirst
Tremors
Frequent urination
Weight gain
Diarrhea
Drowsiness

If you experience serious or persistent side effects, contact your doctor.

Regularly monitor your blood levels as advised by your healthcare provider.
Avoid excessive intake of caffeine and alcohol, as they can interfere with Lithium’s effectiveness.
Stay hydrated, especially in hot weather, to prevent dehydration.
Inform your doctor of any other medications you are taking to avoid interactions.
Do not stop taking Lithium suddenly without consulting your doctor.

Always consult your doctor for personalized advice and guidance.

Frequently Asked Questions

How long does it take for Lithium to work?

Lithium may take several weeks to show its full effects. It’s important to continue taking it as prescribed and attend follow-up appointments.

Can I drink alcohol while taking Lithium?

It’s advisable to avoid excessive alcohol consumption while taking Lithium, as it can increase the risk of side effects and affect the medication’s effectiveness.

What should I do if I miss a dose?

If you miss a dose of Lithium, take it as soon as you remember unless it’s almost time for your next dose. Do not double up doses to make up for the missed one.

Are there any foods or drinks to avoid while on Lithium?

It’s important to maintain a consistent intake of salt in your diet and stay hydrated. Avoid drastic changes in your diet without consulting your doctor.

Is Lithium safe for long-term use?

Lithium is often used for long-term treatment of mood disorders under medical supervision. Regular monitoring by your doctor is essential to ensure safety and effectiveness.