Saphris Side Effects
Generic name: asenapine
Medically reviewed by Drugs.com. Last updated on Mar 1, 2024.
Note: This document contains side effect information about asenapine. Some dosage forms listed on this page may not apply to the brand name Saphris.
Applies to asenapine: transdermal patch extended release. Other dosage forms:
Warning
Transdermal route (Patch, Extended Release)
Use of antipsychotic drugs increases the risk of death in elderly patients with dementia-related psychosis. Asenapine is not approved for treatment of patients with dementia-related psychosis.
Serious side effects of Saphris
Along with its needed effects, asenapine (the active ingredient contained in Saphris) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur while taking asenapine:
Less common
- Abdominal or stomach pain
- blurred vision
- dry mouth
- flushed, dry skin
- fruit-like breath odor
- inability to move the eyes
- increased blinking or spasms of the eyelid
- increased hunger
- increased thirst
- increased urination
- nausea
- sticking out of the tongue
- sweating
- trouble breathing, speaking, or swallowing
- uncontrolled twisting movements of the neck, trunk, arms, or legs
- unexplained weight loss
- unusual facial expressions
- vomiting
Incidence not known
- Black, tarry stools
- chest pain
- chills
- cold sweats
- confusion
- convulsions
- cough or hoarseness
- difficulty in moving
- dizziness, faintness, or lightheadedness when getting up from lying or sitting position
- fainting
- fast, pounding, or irregular heartbeat or pulse
- fever with or without chills
- high fever
- high or low blood pressure
- hives, itching, skin rash
- joint pain
- large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or sex organs
- lip smacking or puckering
- loss of bladder control
- lower back or side pain
- muscle aching or cramping
- muscle pains or stiffness
- painful or difficult urination
- puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
- rapid or worm-like movements of the tongue
- severe muscle stiffness
- sore throat
- sores, ulcers, or white spots on the lips or in the mouth
- swollen glands
- swollen joints
- tightness in the chest
- tiredness
- uncontrolled chewing movements
- uncontrolled movements of the arms and legs
- unusual bleeding or bruising
- unusual tiredness or weakness
- unusually pale skin
Other side effects of Saphris
Some side effects of asenapine may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.
Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
More common
- Difficulty having a bowel movement (stool)
- difficulty in speaking
- drooling
- loss of balance control
- muscle trembling, jerking, or stiffness
- redness, itching, or swelling of the skin where the patch is applied
- restlessness
- shuffling walk
- stiffness of the limbs
Less common
- Acid or sour stomach
- belching
- diarrhea
- heartburn
- increased appetite
- indigestion
- sleepiness or unusual drowsiness
- stomach discomfort, upset, or pain
- stuffy or runny nose
Incidence not known
- Dry mouth
- lack or loss of strength
- swelling of breasts or unusual milk production
For Healthcare Professionals
Applies to asenapine: sublingual tablet, transdermal film extended release.
General
The most commonly reported adverse reactions in adults included akathisia, dizziness, extra pyramidal symptoms other than akathisia, oral hypoesthesia, somnolence, and increased weight. The most commonly reported adverse reactions in pediatric patients included somnolence, dizziness, dysgeusia, oral paresthesia, nausea, increased appetite, fatigue, and increased weight.[Ref]
Nervous system
Very common (10% or greater): Somnolence (up to 53%), extrapyramidal symptoms (up to 25%), sedation (up to 19.2%), akathisia (up to 15%), headache (up to 11%), dizziness (up to 10.1%)
Common (1% to 10%): Dysgeusia, dyskinesia, dystonia/acute dystonia, extrapyramidal disorder, parkinsonism, tremor
Uncommon (0.1% to 1%): Dysarthria, restless leg syndrome, seizure, syncope
Rare (less than 0.1%): Neuroleptic malignant syndrome
Frequency not reported: Bradykinesia, cerebrovascular events, hyperkinesia, hypersomnia, lethargy, motor impairment, myoclonus, resting tremor, tardive dyskinesia[Ref]
Somnolence occurred in up to 53% of patients aged 10 to 17 years given 5 mg orally 2 times a day.
Extrapyramidal symptoms occurred in 25% of patients given 10 mg, compared to 11% of patients given 5 mg.[Ref]
Gastrointestinal
Very common (10% or greater): Oral hypoesthesia (up to 30%), oral paresthesia (up to 11%)
Common (1% to 10%): Abdominal pain, constipation, dry mouth, dyspepsia, glossodynia, nausea, oropharyngeal pain, salivary hypersecretion, stomach discomfort, toothache, vomiting
Uncommon (0.1% to 1%): Dysphagia, gastroesophageal reflux disease (GERD/GORD), oromucosal lesions (ulcerations, blustering, inflammation), swollen tongue
Postmarketing reports: Abdominal discomfort, abdominal pain lower, abdominal pain upper, oral dysesthesia, oral peeling/sloughing, oromandibular dystonia, oropharyngeal muscular dysfunction, pharyngeal edema, swallowing difficulty, swollen throat, tongue disorder, tongue protrusion[Ref]
Oral hypoesthesia occurred in up to 30% of pediatric patients and up to 24% of adults.
Application site reactions that include oral ulcers, blisters, peeling/sloughing, and inflammation primarily in the sublingual area have led to discontinuation of therapy in many cases. Oral hypoesthesia and/or oral paraesthesia may occur directly after administration and usually resolve in 1 hour.[Ref]
Psychiatric
Very common (10% or greater): Insomnia (up to 16%)
Common (1% to 10%): Agitation, anger, anxiety, bipolar disorder, bipolar I disorder, depression, depressive symptoms, irritability, mania, schizophrenia, suicidal ideation
Frequency not reported: Cognitive impairment[Ref]
Other
Very common (10% or greater): Fatigue (up to 14%)
Uncommon (0.1% to 1%): Fall
Rare (less than 0.1%): Idiosyncratic drug reaction
Frequency not reported: Body temperature dysregulation, neonatal drug withdrawal syndrome[Ref]
Metabolic
Very common (10% or greater): Weight gain of at least 7% (up to 13.1%)
Common (1% to 10%): Dehydration, hyperinsulinemia, increased appetite, new-onset metabolic syndrome, weight increased
Uncommon (0.1% to 1%): Hyperglycemia, hyponatremia
Frequency not reported: Blood insulin increased, diabetes mellitus, dyslipidemia, metabolic changes[Ref]
While all atypical antipsychotics have been associated with metabolic changes including hyperglycemia, dyslipidemia, and weight gain, the degree of metabolic change differs for each agent.
In clinical trials with this drug, changes from baseline in fasting glucose ranged from -0.6 to 3.8 mg/dL in adults and -0.45 to 1.43 mg/dL in pediatric patients treated with this drug for 3 to 6 weeks compared with -0.2 and -2.24 mg/dL in adults and pediatric patients receiving placebo, respectively. In a 52-week double-blind, comparator-controlled trial in primarily schizophrenic patients, the mean increase in fasting glucose from baseline was 2.4 mg/dL.
An increase of 7% or more in body weight occurred in 8% to 12% of adults and 4.4% to 4.8% of pediatric patients treated with this drug for 3 weeks compared with 1.1% and 1.6%, respectively in adults and pediatric patients receiving placebo. In a 52-week double-blind, comparator-controlled trial in primarily schizophrenic patients, the mean increase in weight from baseline was 0.9 kg.[Ref]
Musculoskeletal
Very common (10% or greater: Creatine kinase elevations (up to 11.1%)
Common (1% to 10%): Arthralgia, muscle rigidity, muscle strain, myalgia
Frequency not reported: Involuntary muscle contractions, muscle spasms, muscle twitching, musculoskeletal stiffness, neck muscle spasm[Ref]
Cardiovascular
In a dedicated QT study in patients with schizophrenia, doses of 5, 10, 15, and 20 mg twice a day were compared with placebo. QTc interval increases ranged from 2 to 5 msec. No patients had QTc increases of 60 msec or greater, nor did any patient experience a QTc of 500 msec or greater.
Orthostatic hypotension was reported in 4.1% of elderly subjects compared with 0.3% in the combined study populations.[Ref]
Common (1% to 10%): Edema, hypertension, orthostatic hypotension, peripheral edema, tachycardia
Uncommon (0.1% to 1%): Bundle branch block, hypotension, QT prolongation on ECG, sinus bradycardia, sinus tachycardia, temporary bundle branch block
Frequency not reported: Heart rate increased[Ref]
Hepatic
Common (1% to 10%): ALT increased, AST increased, angioedema, transient asymptomatic elevations in hepatic transaminases[Ref]
Transient elevations in serum transaminases (primarily ALT) in the short-term schizophrenia and bipolar mania trials were more common in treated patients but mean changes were not clinically relevant. In short-term, placebo-controlled schizophrenia trials, the mean increase in transaminase levels for treated patients was 1.6 units/L compared to a decrease of 0.4 units/L for placebo treated patients. The proportion of patients with transaminase elevations three or more times the ULN (at the endpoint) was 0.9% for treated patients versus 1.3% for placebo treated patients. In short-term, placebo-controlled bipolar mania trials, the mean increase in transaminase levels for treated patients was 8.9 units/L compared to a decrease of 4.9 units/L in placebo treated patients. The proportion of patients with transaminase elevations three or more times the ULN (at the endpoint) was 2.5% for treated patients versus 0.6% for placebo treated patients. No cases of more severe liver injury were seen. In a 52 week, double-blind, comparator controlled trial of patients with schizophrenia and schizoaffective disorder, the mean increase from baseline of ALT was 1.7 units/L.[Ref]
Respiratory
Common (1% to 10%): Dyspnea, nasal congestion, nasopharyngitis
Rare (less than 0.1%): Pulmonary embolism
Frequency not reported: Difficulty breathing, throat tightness, upper respiratory tract infection
Postmarketing reports: Choking, wheezing[Ref]
Genitourinary
Common (1% to 10%): Dysmenorrhea
Uncommon (0.1% to 1%): Amenorrhea, enuresis, sexual dysfunction
Rare (less than 0.1%): Galactorrhea[Ref]
Dermatologic
Common (1% to 10%): Rash
Uncommon (0.1% to 1%): Photosensitivity reaction[Ref]
Ocular
Uncommon (0.1% to 1%): Accommodation disorder, blurred vision, diplopia
Frequency not reported: Blepharospasm, oculogyration[Ref]
Hematologic
Uncommon (0.1% to 1%): Anemia
Rare (less than 0.1%): Neutropenia, thrombocytopenia
Frequency not reported: Agranulocytosis, leukopenia[Ref]
Endocrine
Uncommon (0.1% to 1%): Decreased prolactin levels
Rare (less than 0.1%): Gynecomastia
Frequency not reported: Hyperprolactinemia[Ref]
Hypersensitivity
Uncommon (0.1% to 1%): Allergic reactions
Postmarketing reports: Anaphylactic/anaphylactoid reactions, serious hypersensitivity reactions[Ref]
Local
Postmarketing reports: Sublingual application site reactions[Ref]
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References
1. Cerner Multum, Inc. UK Summary of Product Characteristics.
2. Cerner Multum, Inc. Australian Product Information.
3. Product Information. Saphris (asenapine). Schering-Plough Corporation. 2009.
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
Some side effects may not be reported. You may report them to the FDA.