Does Latuda Cause Diarrhea?
Yes, Latuda (lurasidone) can cause diarrhea, but it is not a common side effect. According to the FDA prescribing information, diarrhea occurs in approximately 4-5% of adult patients treated with Latuda for bipolar depression, compared to 1-2% with placebo 1. In pediatric patients (ages 10-17), diarrhea occurred in 3% of Latuda-treated patients versus 2% with placebo 1.
How Common Is Diarrhea with Latuda?
Diarrhea is not among the most common adverse reactions associated with Latuda. The FDA label identifies the most frequent side effects (≥5% incidence and at least twice the placebo rate) as:
- Nausea (10-16% depending on indication)
- Somnolence (11-17%)
- Akathisia (9-13%)
- Extrapyramidal symptoms (6-14%)
- Vomiting (6-8%)
Clinical Context
Diarrhea ranks as a relatively minor gastrointestinal side effect with Latuda. When it does occur, it typically presents as mild and self-limiting. The incidence of 3-5% places it well below the threshold for "common" adverse reactions in clinical practice.
Key Points for Clinical Management:
Nausea is far more common than diarrhea with Latuda (10-16% vs 3-5%), so patients are more likely to experience upper GI symptoms 1
No dose-relationship was observed for diarrhea across the therapeutic dose range (20-120 mg/day) 1
Discontinuation rates due to adverse reactions were similar between Latuda and placebo (6-9.5%), with no specific adverse reaction—including diarrhea—causing discontinuation at rates ≥2% 1
Clinical Pitfall to Avoid:
If a patient on Latuda develops significant diarrhea, do not automatically attribute it to the medication without ruling out other causes, given its relatively low incidence. Consider concurrent medications, dietary factors, infections, or underlying gastrointestinal conditions.
The metabolically favorable profile of lurasidone (minimal weight gain, low risk of glucose/lipid disturbances) makes it a particularly useful option when metabolic concerns outweigh the risk of minor GI side effects 2, 3, 4, 5.