Asenapine (Saphris, Secuado): Uses, Dosage, Side Effects, Interactions, and Safety

Saphris® (sublingual tablets)

• How takenPlace the tablet under the tongue and let it fully dissolve. Do not eat or drink for 10 minutes afterward. This protects absorption. Tablets dissolve within seconds.
• Strengths5 mg and 10 mg sublingual tablets.

Secuado® (transdermal patch)

• IndicationAdults with schizophrenia.
• Strengths3.8 mg/24 h, 5.7 mg/24 h, 7.6 mg/24 h patch.
• Key cautionsContraindicated in severe hepatic impairment; rotate sites; follow 24-hour wear time; avoid swimming/bathing (showering allowed).

How Asenapine Works

Asenapine acts on multiple receptors, including dopamine D2 and serotonin 5-HT2A, to rebalance signaling involved in mood, perception, and behavior. That “stabilizer” effect can reduce hallucinations/delusions and smooth out manic agitation.

Schizophrenia (adults: sublingual)

Typical 5 mg twice daily; some patients use 10 mg twice daily depending on response and tolerability. Continue the no food/drink for 10 minutes rule after each dose.

Bipolar I Disorder (adults: sublingual)

• Monotherapy5–10 mg twice daily; if tolerated and needed, increase after about 1 week (do not exceed 10 mg twice daily in studies).
• Adjunct to lithium/valproatecommonly 5 mg twice daily, may increase to 10 mg twice daily as tolerated.

Pediatric Bipolar I (10–17 years: sublingual)

Start 2.5 mg twice daily → increase to 5 mg twice daily after 3 days, then 10 mg twice daily after another 3 days if needed. Dystonia risk is higher if escalation isn’t followed.

Secuado® Patch (adults: schizophrenia)

Typical initial 3.8 mg/24 h; titrate within 3.8–7.6 mg/24 h based on response. Apply one patch every 24 hours to recommended sites (e.g., upper arm/hip/abdomen/back), rotating sites.

Common effects

• Oral hypoesthesia/paresthesia (mouth/tongue numbness) shortly after sublingual dosing, usually resolves within an hour.

• Somnolence, dizziness, akathisia/restlessness, insomnia, weight gain, and metabolic changes can occur.

QT prolongation (heart rhythm)

Asenapine can increase the QT interval; caution with other QT-prolonging drugs and in patients with risk factors for torsades. Clinicians weigh risks if combining with other QT-prolongers.

Boxed warnings & serious risks

• ncreased mortality in elderly patients with dementia-related psychosis; not approved for this population.

• Risks include cerebrovascular events in elderly with dementia, NMS, tardive dyskinesia, hyperprolactinemia, seizures, orthostatic hypotension/falls, leukopenia/neutropenia, and hypersensitivity (including anaphylaxis/angioedema). Seek urgent care for severe symptoms.

Asenapine vs. Other Options in Practice

• Sublingual advantagesfast dissolve; helpful for people who prefer not to swallow tablets; unique but benign mouth numbness can occur.
• Transdermal (Secuado)daily patch avoids swallowing and GI first-pass metabolism; can help with adherence and steady exposure; site-care and 24-hour wear schedule are essential; QT and other warnings align with the class.

Cost & Access

Generic asenapine sublingual is widely available; Secuado patches are typically handled as specialty products with prior authorization and copay programs via manufacturer portals. Work with your prescriber and pharmacy to determine coverage.

When to Call Your Prescriber

• Persistent restlessness/akathisia, severe mouth irritation, or disruptive insomnia

• Symptoms of high blood sugar (excessive thirst/urination) or rapid weight gain

• Signs of allergic reaction, heart rhythm changes (palpitations, fainting), or uncontrolled movements