Treatment of Bipolar Disorder (Manic Depression)
For acute mania, start with lithium, valproate, or an atypical antipsychotic (aripiprazole, olanzapine, risperidone, quetiapine) as first-line monotherapy, with lithium being the only FDA-approved agent for patients age 12 and older. 1, 2
Acute Mania/Mixed Episodes
First-line medication options:
- Lithium 5-10 mg once daily (adults) or 2.5-5 mg once daily (adolescents), targeting 10 mg/day within several days 3
- Valproate with systematic 6-8 week trial using adequate doses before considering changes 1
- Atypical antipsychotics (olanzapine 10-15 mg daily, risperidone, quetiapine, aripiprazole, ziprasidone) provide more rapid symptom control than mood stabilizers alone 1, 3
Response rates favor valproate (53%) over lithium (38%) in children and adolescents with mania and mixed episodes, though lithium remains the only FDA-approved option for ages 12+ 1, 4, 2
For severe presentations, combine lithium or valproate with an atypical antipsychotic rather than continuing monotherapy 1
Maintenance Therapy
Continue the regimen that successfully treated the acute episode for at least 12-24 months, with some patients requiring lifelong treatment 1, 4
Lithium demonstrates superior evidence for preventing both manic and depressive episodes in long-term trials 1
Critical pitfall: Withdrawal of maintenance lithium increases relapse risk dramatically, especially within 6 months of discontinuation, with >90% of non-compliant adolescents relapsing compared to 37.5% of compliant patients 1, 4
Bipolar Depression
Start with olanzapine-fluoxetine combination (5 mg olanzapine + 20 mg fluoxetine daily in adults; 2.5 mg olanzapine + 20 mg fluoxetine in adolescents) as first-line treatment 1, 4, 3
Never use antidepressant monotherapy—this triggers manic episodes, rapid cycling, and mood destabilization 1, 4, 5
Lamotrigine is particularly effective for preventing depressive episodes during maintenance, though it requires slow titration to minimize risk of Stevens-Johnson syndrome 1, 4
Required Monitoring
For lithium:
- Baseline: Complete blood count, electrolytes, blood urea nitrogen, creatinine, serum calcium, thyroid function, urinalysis, pregnancy test in females 6
- Ongoing: Lithium levels, renal and thyroid function, urinalysis every 3-6 months 6, 1
For valproate:
- Baseline: Liver function tests, complete blood count, pregnancy test 6, 7
- Ongoing: Serum drug levels, hepatic and hematological indices every 3-6 months 6, 7
For atypical antipsychotics:
- Baseline: Body mass index, waist circumference, blood pressure, fasting glucose, fasting lipid panel 6
- Ongoing: Body mass index monthly for 3 months then quarterly; blood pressure, fasting glucose, lipids at 3 months then yearly 6, 1
- Monitor for extrapyramidal side effects and tardive dyskinesia 6
Psychosocial Interventions
Combine pharmacotherapy with psychoeducation, cognitive-behavioral therapy, and family interventions—medication alone provides only partial relief with high recurrence rates 6, 1, 8
Psychotherapy added to medication consistently shows advantages over medication alone for symptom burden and relapse prevention 8
Electroconvulsive Therapy
For severely impaired adolescents with bipolar I disorder who fail medication trials or cannot tolerate them, consider ECT 6, 4
ECT is the treatment of choice during pregnancy, for catatonia, neuroleptic malignant syndrome, or when standard medications are contraindicated 6
Critical Pitfalls to Avoid
Inadequate trial duration: Complete 6-8 weeks at adequate doses before changing medications 1, 7
Premature discontinuation of maintenance therapy: This dramatically increases relapse risk, particularly with lithium withdrawal 1, 4
Failure to monitor metabolic parameters with atypical antipsychotics: Weight gain, diabetes, and hyperlipidemia develop frequently and require systematic tracking 6, 1, 4
Overlooking comorbidities: Screen for substance use disorders, anxiety disorders, and ADHD, which complicate treatment and require specific management once mood is stabilized 1, 4
Using antidepressants without mood stabilizers: This is contraindicated and triggers mood destabilization 1, 4, 5