Is a 10 mg tablet of lurasidone (Latuda) available for a 58‑year‑old woman taking lamotrigine 150 mg, lurasidone 20 mg, and lorazepam 5 mg for hallucinations?

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Last updated: September 21, 2026 • View editorial policy

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Is a 10 mg tablet of lurasidone (Latuda) available?

No, there is no 10 mg tablet formulation of lurasidone (Latuda) available. According to FDA labeling, the recommended starting dose is 40 mg/day administered once daily with food (at least 350 calories), and the maximum recommended dose is 80 mg/day 1. The available tablet strengths are 20 mg, 40 mg, 60 mg, 80 mg, 120 mg, and 160 mg 1.

Available Dosing Options

For this 58-year-old woman currently taking lurasidone 20 mg for hallucinations:

  • The 20 mg tablet is the lowest available dose and represents the minimum commercially available strength 1
  • If dose reduction below 20 mg is clinically necessary, lurasidone would need to be discontinued as no lower formulation exists
  • The standard therapeutic range is 40-80 mg/day, with 20 mg being a sub-therapeutic dose used primarily in specific populations 2, 3

Clinical Context for This Patient

This patient's current 20 mg dose is below the recommended therapeutic range. The evidence shows:

  • Optimal therapeutic doses are 40-60 mg/day for bipolar depression and schizophrenia, with response rates (≥20% symptom reduction) achieving NNT of 3-6 versus placebo 4, 2
  • Doses of 20 mg/day show minimal efficacy compared to higher doses 4
  • The lorazepam 5 mg daily dose is concerning - this is at the maximum recommended daily dose and poses significant risks in older adults including falls, cognitive impairment, delirium, and paradoxical agitation 5, 6

Critical Safety Concerns

The combination of high-dose benzodiazepine (lorazepam 5 mg) with antipsychotics warrants immediate attention:

  • Benzodiazepines are listed in Beers Criteria for avoidance in older adults due to sedation, cognitive impairment, falls, and withdrawal syndromes 5
  • Fatalities have been reported with concurrent use of benzodiazepines with high-dose olanzapine 7, and similar caution applies to all antipsychotic-benzodiazepine combinations
  • In older/frail patients, lower benzodiazepine doses (0.25-0.5 mg) are recommended when co-administered with antipsychotics 7

Recommended Approach

Rather than seeking a 10 mg lurasidone tablet (which doesn't exist), the clinical priority should be:

  1. Reassess the diagnosis and treatment plan - hallucinations in a 58-year-old woman on this medication combination require evaluation for delirium, substance use, or other organic causes 7

  2. Address the excessive lorazepam dose - taper gradually using EMPOWER technique, consider cognitive behavioral therapy for anxiety/sleep 5

  3. Optimize lurasidone dosing - if continuing lurasidone, increase to therapeutic range (40-80 mg/day) with food 1, 4, or consider alternative antipsychotics if 20 mg represents intentional dose reduction due to tolerability issues

  4. Monitor for metabolic effects - lurasidone has favorable metabolic profile but requires monitoring, especially with dose increases 1, 2

References

5
Guideline

polypharmacy management in older patients.

Mayo Clinic Proceedings, 2021

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