Lurasidone (brand name Latuda) is a second-generation (atypical) antipsychotic.
What it’s used for
- Schizophrenia in adults and in youths aged 13 years and older.
- Bipolar depression (depressive episodes) in adults and in youths aged 10–17 years.
How it works (mechanism)
- Antagonizes dopamine D2 and serotonin 5-HT2A receptors.
- Also has activity at other receptors (e.g., 5-HT1A partial agonist; 5-HT7 antagonism).
- Generally has a relatively favorable metabolic side-effect profile compared with some other antipsychotics.
Important administration notes
- Take once daily with food (at least about 350 calories) to ensure proper absorption.
- Swallow whole; do not crush or split tablets unless your doctor tells you otherwise.
Typical dosing (illustrative ranges; your exact dose should be set by your clinician)
- Schizophrenia: commonly started around 40 mg once daily, may be increased up to 80 mg daily, with a typical maximum of 160 mg/day.
- Bipolar depression: commonly 20–60 mg once daily; maximum around 60 mg/day.
- Pediatric dosing (for people 10–17 with bipolar depression or schizophrenia) is lower and adjusted by a clinician; follow their specific instructions.
Common side effects
- Nausea, vomiting, upset stomach
- Somnolence or fatigue
- Akathisia (inner restlessness) or muscle stiffness
- Dizziness or headache
- Weight gain or increased appetite is usually modest
- Possible metabolic changes (glucose, lipids)—generally smaller effects than some other antipsychotics
- Less common but serious: extrapyramidal symptoms (EPS), tardive dyskinesia, neuroleptic malignant syndrome (rare)
Safety and precautions
- Elderly patients with dementia-related psychosis are at higher risk of death with antipsychotics; use with caution.
- Can prolong the QT interval, especially with other QT-prolonging drugs or in people with heart problems.
- Interactions with other medicines can affect lurasidone levels (see below).
- Not all patients are suitable for lurasidone—your clinician will consider your medical history and other medications.
Drug interactions and cautions
- Lurasidone is metabolized mainly by the liver enzyme CYP3A4.
- Strong CYP3A4 inhibitors (e.g., ketoconazole, clarithromycin, ritonavir) can raise lurasidone levels; dose reductions are often needed.
- Strong CYP3A4 inducers (e.g., rifampin, certain anticonvulsants) can lower lurasidone levels; dose increases or monitoring may be required.
- Avoid or limit alcohol. Be cautious with other sedating medicines.
- Tell your healthcare provider about all medicines you take, including OTC drugs and supplements.
Pregnancy and breast-feeding
- Discuss with your clinician if you are pregnant, planning pregnancy, or breast-feeding. The decision depends on balancing potential benefits and risks.
Monitoring and follow-up
- Your clinician may monitor weight, blood sugar, and lipid levels, especially if you have risk factors for metabolic changes.
- Watch for signs of EPS or restlessness, and report any muscle stiffness, tremors, or unusual movements.
- If you have chest pain, fainting, severe or worsened side effects, contact a healthcare professional promptly.
If you’d like, tell me your age, what condition you’re treating (schizophrenia or bipolar depression), and any other meds you take. I can tailor dosing ranges, potential interactions, and monitoring advice to your situation. And if you want a plain-language patient-friendly summary or a quick pros/cons comparison with other antipsychotics, I can provide that too.