CloudRx - Zukaria – Asenapine Maleate

Indications

Asenapine is indicated for:

Schizophrenia in adults
Bipolar I disorder
Acute monotherapy for manic or mixed episodes in adults and pediatric patients 10 to 17 years of age
Adjunctive treatment to lithium or valproate in adults.
Maintenance monotherapy treatment in adults

Pharmacology

The mechanism of action of asenapine, in schizophrenia and bipolar I disorder, is unknown. It has been suggested that the efficacy of asenapine in schizophrenia could be mediated through a combination of antagonist activity at D2 and 5-HT 2A receptors.

Dosage & Administration

Important:
Do not take any medication without a doctor's prescription. Self-medication can be dangerous.

Schizophrenia: adults:

Initial dose: 5 mg sublingually, twice daily
Recommended dose: 5 mg sublingually, twice daily
Maximum dose: 10 mg sublingually, twice daily

Schizophrenia maintenance treatment in adults.

Initial dose: 5 mg sublingually, twice daily
Recommended dose: 5-10 mg sublingually, twice daily
Maximum dose: 10 mg sublingually, twice daily

Bipolar mania in adults: acute and maintenance monotherapy.

Initial dose: 5-10 mg sublingually, twice daily
Recommended dose: 5-10 mg sublingually, twice daily
Maximum dose: 10 mg sublingually, twice daily

Bipolar mania in pediatric patients (10-17 years): monotherapy.

Initial dose: 2.5 mg sublingually, twice daily
Recommended dose: 2.5-10 mg sublingually, twice daily
Maximum dose: 10 mg sublingually, twice daily

Bipolar mania in adults: as an adjunct to lithium or valproate

Initial dose: 5 mg sublingually, twice daily
Recommended dose: 5-10 mg sublingually, twice daily
Maximum dose: 10 mg sublingually, twice daily

Sublingual tablets should not be swallowed. It should be placed under the tongue and left to dissolve completely. It will dissolve in saliva within seconds. Eating and drinking should be avoided for 10 minutes after administration.

Interaction

Asenapine should be used with caution in combination with:

Antihypertensive, as it may cause hypotension
Paroxetine (CYP2D6 substrate and inhibitor)

Contraindications

Asenapine is contraindicated in patients with:

Severe hepatic impairment (Child-Pugh C).
A history of hypersensitivity reactions to asenapine. Reactions have included anaphylaxis, angioedema, hypotension, tachycardia, swollen tongue, dyspnea, wheezing and rash.

Side Effects

The most common adverse reactions to asenapine are akathisia, somnolence, oral hypoesthesia, dizziness, extrapyramidal symptoms, nausea, increased appetite, fatigue, and increased weight.

Pregnancy & Lactation

May cause extrapyramidal and/or withdrawal symptoms in neonates with third trimester exposure. Lactation studies have not been conducted to assess the presence of asenapine in human milk, the effects of asenapine on the breastfed infant, or the effects of asenapine on milk production.

Precautions & Warnings

Caution should be exercised when asenapine is prescribed in elderly patients with dementia-related psychosis, QT prolongation, neuroleptic malignant syndrome, tardive dyskinesia, metabolic changes, orthostatic hypotension, leukopenia, neutropenia, agranulocytosis, seizures, and the potential for cognitive and motor impairment.

Overdose Effects

There is no specific antidote for asenapine. The management of overdose should concentrate on supportive therapy, maintaining an adequate airway, oxygenation and ventilation, and the management of symptoms. In cases of severe extrapyramidal symptoms, anticholinergic medication should be administered. Close medical supervision and monitoring should continue until the patient recovers.

Storage Conditions

Do not store above 30°C. Keep away from light and out of the reach of children.