There isn't a single official ranking of the "top 3 most prescribed" medications for Bipolar I and Bipolar II because prescribing varies by country, insurance coverage, age, symptoms (mania vs depression), and individual response.
However, as of 2025–2026, the medications that consistently appear as first-line treatments and are among the most commonly prescribed are:
Bipolar I Disorder
- Lithium
- Considered the gold standard for Bipolar I.
- Effective for mania, maintenance, and reducing suicide risk.
- Quetiapine (Seroquel)
- Used for mania, bipolar depression, and maintenance.
- One of the most widely used bipolar medications.
- Lamotrigine (Lamictal)
- Particularly valuable for preventing depressive episodes.
- Often favored when depression is the dominant problem.
Other commonly used medications include Lurasidone (Latuda), Cariprazine (Vraylar), and Valproate.
Bipolar II Disorder
When depression is the main issue (which is very common in Bipolar II), the medications most frequently recommended and prescribed are:
- Quetiapine
- The only medication consistently recommended as a first-line monotherapy for acute Bipolar II depression in several major guidelines.
- Lamotrigine
- Frequently used for long-term prevention of depressive relapses.
- Lithium
- Used for maintenance and mood stabilization, especially when symptoms are more severe.
If your concern is Bipolar I depression that won't lift
Many psychiatrists in 2026 consider the strongest evidence-supported options for bipolar depression to include:
- Quetiapine
- Lamotrigine
- Lithium
- Lurasidone
- Cariprazine
- In treatment-resistant cases, options such as ECT (electroconvulsive therapy) may be considered.
