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Darifenacin

Medically reviewed by Drugs.com. Last updated on Aug 27, 2020.

Pronunciation

(dar i FEN a sin)

Index Terms

  • Darifenacin Hydrobromide
  • UK-88,525

Dosage Forms

Excipient information presented when available (limited, particularly for generics); consult specific product labeling. [DSC] = Discontinued product

Tablet Extended Release 24 Hour, Oral:

Enablex: 7.5 mg, 15 mg [DSC]

Generic: 7.5 mg, 15 mg

Brand Names: U.S.

  • Enablex

Pharmacologic Category

  • Anticholinergic Agent

Pharmacology

Selective antagonist of the M3 muscarinic (cholinergic) receptor subtype. Blockade of the receptor limits bladder contractions, reducing the symptoms of bladder irritability/overactivity (urge incontinence, urgency and frequency).

Distribution

Vdss: ~163 L

Metabolism

Hepatic, via CYP3A4 and CYP2D6

Excretion

Urine (~60%), feces (40%); as metabolites (inactive)

Time to Peak

Plasma: ~7 hours

Half-Life Elimination

~13 to 19 hours

Protein Binding

~98% (primarily alpha1-acid glycoprotein)

Special Populations: Hepatic Function Impairment

Unbound darifenacin exposure was estimated to be 4.7-fold higher in patients with moderate hepatic impairment.

Special Populations: Elderly

Clearance decreases 6% per decade relative to a median age of 44 years. Exposure at steady state was ~12% to 19% higher in subjects 45 to 65 years of age.

Special Populations: Gender

Cmax and AUC were ~57% to 79% and 61%to 73% higher, respectively, in women than in men.

Use: Labeled Indications

Overactive bladder: Treatment of overactive bladder with symptoms of urinary frequency, urgency, or urge incontinence.

Contraindications

Patients with or at risk of uncontrolled narrow-angle glaucoma, urinary retention, gastric retention

Canadian labeling: Additional contraindications (not in US labeling): Hypersensitivity to darifenacin or any component of the formulation.

Dosing: Adult

Overactive bladder: Oral: Initial: 7.5 mg once daily. If response is not adequate after a minimum of 2 weeks, dosage may be increased to 15 mg once daily.

Dosage adjustment for concomitant therapy: Significant drug interactions exist, requiring dose/frequency adjustment or avoidance. Consult drug interactions database for more information.

Dosing: Geriatric

Refer to adult dosing.

Administration

Oral:

Administer with water without regard to food. Swallow tablet whole; do not chew, crush, or divide.

Bariatric surgery: Tablet, extended release: Some institutions may have specific protocols that conflict with these recommendations; refer to institutional protocols as appropriate. Film-coated tablet; do not cut, crush, or chew. No IR formulation available. If tablet is too large by individual program standards, consider switching to a different antimuscarinic incontinence drug that is available in IR formulation, such as tolterodine, oxybutynin, solifenacin, or trospium.

Storage

Store at 25°C (77°F); excursions permitted to 15°C to 30°C (59°F to 86°F). Protect from light.

Drug Interactions

Abametapir: May increase the serum concentration of CYP3A4 Substrates (High risk with Inhibitors). Avoid combination

Acetylcholinesterase Inhibitors: Anticholinergic Agents may diminish the therapeutic effect of Acetylcholinesterase Inhibitors. Acetylcholinesterase Inhibitors may diminish the therapeutic effect of Anticholinergic Agents. Monitor therapy

Aclidinium: May enhance the anticholinergic effect of Anticholinergic Agents. Avoid combination

Ajmaline: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Ajmaline. Monitor therapy

Amantadine: May enhance the anticholinergic effect of Anticholinergic Agents. Monitor therapy

Amitriptyline: CYP2D6 Inhibitors (Moderate) may increase serum concentrations of the active metabolite(s) of Amitriptyline. CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Amitriptyline. Monitor therapy

Amoxapine: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Amoxapine. Monitor therapy

Amphetamines: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Amphetamines. Management: Monitor for amphetamine toxicities (including serotonin syndrome) if used with a moderate CYP2D6 inhibitor. Initiate amphetamine therapy at lower doses, monitor frequently, and adjust doses as needed. Discontinue amphetamines if serotoinin syndrome occurs Monitor therapy

Anticholinergic Agents: May enhance the adverse/toxic effect of other Anticholinergic Agents. Monitor therapy

Aprepitant: May increase the serum concentration of CYP3A4 Substrates (High risk with Inhibitors). Monitor therapy

ARIPiprazole: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of ARIPiprazole. Management: Monitor for increased aripiprazole pharmacologic effects. Aripiprazole dose adjustments may or may not be required based on concomitant therapy, indication, or dosage form. Consult full interaction monograph for specific recommendations. Monitor therapy

ARIPiprazole Lauroxil: CYP2D6 Inhibitors (Moderate) may increase serum concentrations of the active metabolite(s) of ARIPiprazole Lauroxil. Monitor therapy

AtoMOXetine: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of AtoMOXetine. Monitor therapy

Botulinum Toxin-Containing Products: May enhance the anticholinergic effect of Anticholinergic Agents. Monitor therapy

Brexpiprazole: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Brexpiprazole. Management: If brexpiprazole is to be used together with both a moderate CYP2D6 inhibitor and a strong or moderate CYP3A4 inhibitor, the brexpiprazole dose should be reduced to 25% of the usual dose when treating indications other than major depressive disorder. Monitor therapy

Cannabinoid-Containing Products: Anticholinergic Agents may enhance the tachycardic effect of Cannabinoid-Containing Products. Exceptions: Cannabidiol. Monitor therapy

Carvedilol: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Carvedilol. Monitor therapy

Chloral Betaine: May enhance the adverse/toxic effect of Anticholinergic Agents. Monitor therapy

Cimetropium: Anticholinergic Agents may enhance the anticholinergic effect of Cimetropium. Avoid combination

Clofazimine: May increase the serum concentration of CYP3A4 Substrates (High risk with Inhibitors). Monitor therapy

ClomiPRAMINE: CYP2D6 Inhibitors (Moderate) may increase serum concentrations of the active metabolite(s) of ClomiPRAMINE. CYP2D6 Inhibitors (Moderate) may increase the serum concentration of ClomiPRAMINE. Monitor therapy

CloZAPine: Anticholinergic Agents may enhance the constipating effect of CloZAPine. Management: Consider alternatives to this combination whenever possible. If combined, monitor closely for signs and symptoms of gastrointestinal hypomotility and consider prophylactic laxative treatment. Consider therapy modification

Codeine: CYP2D6 Inhibitors (Moderate) may diminish the therapeutic effect of Codeine. These CYP2D6 inhibitors may prevent the metabolic conversion of codeine to its active metabolite morphine. Monitor therapy

Conivaptan: May increase the serum concentration of CYP3A4 Substrates (High risk with Inhibitors). Avoid combination

CYP3A4 Inducers (Moderate): May decrease the serum concentration of CYP3A4 Substrates (High risk with Inducers). Monitor therapy

CYP3A4 Inducers (Strong): May increase the metabolism of CYP3A4 Substrates (High risk with Inducers). Management: Consider an alternative for one of the interacting drugs. Some combinations may be specifically contraindicated. Consult appropriate manufacturer labeling. Consider therapy modification

CYP3A4 Inhibitors (Moderate): May increase the serum concentration of Darifenacin. Monitor therapy

CYP3A4 Inhibitors (Strong): May increase the serum concentration of Darifenacin. Management: Limit the darifenacin dose to no more than 7.5 mg daily if combined with strong CYP3A4 inhibitors. Monitor patients for increased darifenacin toxicities (eg, dry mouth, constipation, headache, CNS effects) when these agents are combined. Consider therapy modification

Dabrafenib: May decrease the serum concentration of CYP3A4 Substrates (High risk with Inducers). Management: Seek alternatives to the CYP3A4 substrate when possible. If concomitant therapy cannot be avoided, monitor clinical effects of the substrate closely (particularly therapeutic effects). Consider therapy modification

Deferasirox: May decrease the serum concentration of CYP3A4 Substrates (High risk with Inducers). Monitor therapy

Desipramine: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Desipramine. Monitor therapy

Deutetrabenazine: CYP2D6 Inhibitors (Moderate) may increase serum concentrations of the active metabolite(s) of Deutetrabenazine. Monitor therapy

Dextromethorphan: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Dextromethorphan. Monitor therapy

Doxepin (Systemic): CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Doxepin (Systemic). Monitor therapy

Doxepin (Topical): CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Doxepin (Topical). Monitor therapy

DOXOrubicin (Conventional): CYP2D6 Inhibitors (Moderate) may increase the serum concentration of DOXOrubicin (Conventional). Avoid combination

Duvelisib: May increase the serum concentration of CYP3A4 Substrates (High risk with Inhibitors). Monitor therapy

Eliglustat: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Eliglustat. Management: Eliglustat dose is 84 mg daily with CYP2D6 inhibitors. Use is contraindicated (COI) when also combined with strong CYP3A4 inhibitors. When also combined with a moderate CYP3A4 inhibitor, use is COI in CYP2D6 EMs or IMs and should be avoided in CYP2D6 PMs. Consider therapy modification

Eluxadoline: Anticholinergic Agents may enhance the constipating effect of Eluxadoline. Avoid combination

Enzalutamide: May decrease the serum concentration of CYP3A4 Substrates (High risk with Inducers). Management: Concurrent use of enzalutamide with CYP3A4 substrates that have a narrow therapeutic index should be avoided. Use of enzalutamide and any other CYP3A4 substrate should be performed with caution and close monitoring. Consider therapy modification

Erdafitinib: May decrease the serum concentration of CYP3A4 Substrates (High risk with Inducers). Monitor therapy

Erdafitinib: May increase the serum concentration of CYP3A4 Substrates (High risk with Inhibitors). Monitor therapy

Flecainide: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Flecainide. Monitor therapy

Fosaprepitant: May increase the serum concentration of CYP3A4 Substrates (High risk with Inhibitors). Monitor therapy

Fosnetupitant: May increase the serum concentration of CYP3A4 Substrates (High risk with Inhibitors). Monitor therapy

Fusidic Acid (Systemic): May increase the serum concentration of CYP3A4 Substrates (High risk with Inhibitors). Avoid combination

Gastrointestinal Agents (Prokinetic): Anticholinergic Agents may diminish the therapeutic effect of Gastrointestinal Agents (Prokinetic). Monitor therapy

Glucagon: Anticholinergic Agents may enhance the adverse/toxic effect of Glucagon. Specifically, the risk of gastrointestinal adverse effects may be increased. Monitor therapy

Glycopyrrolate (Oral Inhalation): Anticholinergic Agents may enhance the anticholinergic effect of Glycopyrrolate (Oral Inhalation). Avoid combination

Glycopyrronium (Topical): May enhance the anticholinergic effect of Anticholinergic Agents. Avoid combination

Haloperidol: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Haloperidol. Monitor therapy

Idelalisib: May increase the serum concentration of CYP3A4 Substrates (High risk with Inhibitors). Avoid combination

Iloperidone: CYP2D6 Inhibitors (Moderate) may decrease serum concentrations of the active metabolite(s) of Iloperidone. Specifically, concentrations of the metabolite P95 may be decreased. CYP2D6 Inhibitors (Moderate) may increase serum concentrations of the active metabolite(s) of Iloperidone. Specifically, concentrations of the metabolite P88 may be increased. CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Iloperidone. Monitor therapy

Imipramine: CYP2D6 Inhibitors (Moderate) may increase serum concentrations of the active metabolite(s) of Imipramine. Concentrations of desipramine may be increased. CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Imipramine. Monitor therapy

Indoramin: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Indoramin. Monitor therapy

Ipratropium (Oral Inhalation): May enhance the anticholinergic effect of Anticholinergic Agents. Avoid combination

Itopride: Anticholinergic Agents may diminish the therapeutic effect of Itopride. Monitor therapy

Ivosidenib: May decrease the serum concentration of CYP3A4 Substrates (High risk with Inducers). Monitor therapy

Larotrectinib: May increase the serum concentration of CYP3A4 Substrates (High risk with Inhibitors). Monitor therapy

Levosulpiride: Anticholinergic Agents may diminish the therapeutic effect of Levosulpiride. Avoid combination

Lofepramine: CYP2D6 Inhibitors (Moderate) may increase serum concentrations of the active metabolite(s) of Lofepramine. The active metabolite of lofepramine is desipramine. Monitor therapy

Mequitazine: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Mequitazine. Avoid combination

Metoclopramide: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Metoclopramide. Monitor therapy

Metoprolol: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Metoprolol. Monitor therapy

Mianserin: May enhance the anticholinergic effect of Anticholinergic Agents. Monitor therapy

MiFEPRIStone: May increase the serum concentration of CYP3A4 Substrates (High risk with Inhibitors). Management: Minimize doses of CYP3A4 substrates, and monitor for increased concentrations/toxicity, during and 2 weeks following treatment with mifepristone. Avoid cyclosporine, dihydroergotamine, ergotamine, fentanyl, pimozide, quinidine, sirolimus, and tacrolimus. Consider therapy modification

Mirabegron: Anticholinergic Agents may enhance the adverse/toxic effect of Mirabegron. Monitor therapy

Mitotane: May decrease the serum concentration of CYP3A4 Substrates (High risk with Inducers). Management: Doses of CYP3A4 substrates may need to be adjusted substantially when used in patients being treated with mitotane. Consider therapy modification

Nebivolol: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Nebivolol. Monitor therapy

Netupitant: May increase the serum concentration of CYP3A4 Substrates (High risk with Inhibitors). Monitor therapy

Nitroglycerin: Anticholinergic Agents may decrease the absorption of Nitroglycerin. Specifically, anticholinergic agents may decrease the dissolution of sublingual nitroglycerin tablets, possibly impairing or slowing nitroglycerin absorption. Monitor therapy

Nortriptyline: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Nortriptyline. Monitor therapy

Oliceridine: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Oliceridine. Monitor therapy

Olmutinib: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Olmutinib. Monitor therapy

Opioid Agonists: Anticholinergic Agents may enhance the adverse/toxic effect of Opioid Agonists. Specifically, the risk for constipation and urinary retention may be increased with this combination. Monitor therapy

Oxatomide: May enhance the anticholinergic effect of Anticholinergic Agents. Avoid combination

Palbociclib: May increase the serum concentration of CYP3A4 Substrates (High risk with Inhibitors). Monitor therapy

PARoxetine: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of PARoxetine. Monitor therapy

Perhexiline: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Perhexiline. Monitor therapy

Perphenazine: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Perphenazine. Monitor therapy

Pimozide: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Pimozide. Monitor therapy

Pitolisant: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Pitolisant. Monitor therapy

Potassium Chloride: Anticholinergic Agents may enhance the ulcerogenic effect of Potassium Chloride. Management: Patients on drugs with substantial anticholinergic effects should avoid using any solid oral dosage form of potassium chloride. Avoid combination

Potassium Citrate: Anticholinergic Agents may enhance the ulcerogenic effect of Potassium Citrate. Avoid combination

Pramlintide: May enhance the anticholinergic effect of Anticholinergic Agents. These effects are specific to the GI tract. Avoid combination

Propafenone: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Propafenone. Monitor therapy

Propranolol: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Propranolol. Monitor therapy

Protriptyline: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Protriptyline. Monitor therapy

Ramosetron: Anticholinergic Agents may enhance the constipating effect of Ramosetron. Monitor therapy

Revefenacin: Anticholinergic Agents may enhance the anticholinergic effect of Revefenacin. Avoid combination

RisperiDONE: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of RisperiDONE. Monitor therapy

Sarilumab: May decrease the serum concentration of CYP3A4 Substrates (High risk with Inducers). Monitor therapy

Secretin: Anticholinergic Agents may diminish the therapeutic effect of Secretin. Management: Avoid concomitant use of anticholinergic agents and secretin. Discontinue anticholinergic agents at least 5 half-lives prior to administration of secretin. Consider therapy modification

Siltuximab: May decrease the serum concentration of CYP3A4 Substrates (High risk with Inducers). Monitor therapy

Simeprevir: May increase the serum concentration of CYP3A4 Substrates (High risk with Inhibitors). Monitor therapy

Stiripentol: May increase the serum concentration of CYP3A4 Substrates (High risk with Inhibitors). Management: Use of stiripentol with CYP3A4 substrates that are considered to have a narrow therapeutic index should be avoided due to the increased risk for adverse effects and toxicity. Any CYP3A4 substrate used with stiripentol requires closer monitoring. Consider therapy modification

Tamoxifen: CYP2D6 Inhibitors (Moderate) may decrease serum concentrations of the active metabolite(s) of Tamoxifen. Specifically, CYP2D6 inhibitors may decrease the metabolic formation of highly potent active metabolites. Management: Consider alternatives to the use of moderate CYP2D6 inhibitors with tamoxifen when possible, as the combination may be associated with reduced clinical effectiveness of tamoxifen. Consider therapy modification

Tamsulosin: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Tamsulosin. Monitor therapy

Tetrabenazine: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Tetrabenazine. Specifically, concentrations of the active alpha- and beta-dihydrotetrabenazine metabolites may be increased. Monitor therapy

Thiazide and Thiazide-Like Diuretics: Anticholinergic Agents may increase the serum concentration of Thiazide and Thiazide-Like Diuretics. Monitor therapy

Thioridazine: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Thioridazine. Avoid combination

Timolol (Systemic): CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Timolol (Systemic). Monitor therapy

Tiotropium: Anticholinergic Agents may enhance the anticholinergic effect of Tiotropium. Avoid combination

Tocilizumab: May decrease the serum concentration of CYP3A4 Substrates (High risk with Inducers). Monitor therapy

Topiramate: Anticholinergic Agents may enhance the adverse/toxic effect of Topiramate. Monitor therapy

TraMADol: CYP2D6 Inhibitors (Moderate) may decrease serum concentrations of the active metabolite(s) of TraMADol. CYP2D6 Inhibitors (Moderate) may increase the serum concentration of TraMADol. Monitor therapy

Trimipramine: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Trimipramine. Monitor therapy

Umeclidinium: May enhance the anticholinergic effect of Anticholinergic Agents. Avoid combination

Valbenazine: CYP2D6 Inhibitors (Moderate) may increase serum concentrations of the active metabolite(s) of Valbenazine. Monitor therapy

Vortioxetine: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Vortioxetine. Monitor therapy

Zuclopenthixol: CYP2D6 Inhibitors (Moderate) may increase the serum concentration of Zuclopenthixol. Monitor therapy

Adverse Reactions

>10%: Gastrointestinal: Xerostomia (19% to 35%), constipation (15% to 21%)

1% to 10%:

Cardiovascular: Hypertension (≥1%), peripheral edema (≥1%)

Central nervous system: Headache (7%), dizziness (<2%), pain (≥1%)

Dermatological: Pruritus (≥1%), skin rash (≥1%), xeroderma (≥1%)

Endocrine & metabolic: Weight gain (≥1%)

Gastrointestinal: Dyspepsia (3% to 8%), abdominal pain (2% to 4%), nausea (2% to 4%), vomiting (≥1%)

Genitourinary: Urinary tract infection (4% to 5%), vaginitis (≥1%), urinary retention (acute)

Neuromuscular & skeletal: Weakness (<3%), arthralgia (≥1%), back pain (≥1%)

Ophthalmic: Dry eye syndrome (2%), visual disturbance (≥1%)

Respiratory: Flu-like symptoms (1% to 3%), bronchitis (≥1%), pharyngitis (≥1%), rhinitis (≥1%), sinusitis (≥1%)

Postmarketing and/or case reports: Anaphylaxis, angioedema, confusion, erythema multiforme, granuloma (annulare), hallucination, hypersensitivity reaction, palpitations

Warnings/Precautions

Concerns related to adverse effects:

• Angioedema: Angioedema involving the face, lips, tongue, and/or larynx have been reported; some cases have occurred after the first dose. May be life-threatening. Immediately discontinue and institute supportive care if tongue, hypopharynx, or larynx is involved.

• CNS effects: CNS effects have been reported (eg, headache, confusion, hallucinations, somnolence); monitor for CNS effects, particularly at treatment initiation or dose increase; reduce dose or discontinue if necessary. May cause drowsiness and/or blurred vision, which may impair physical or mental abilities; patients must be cautioned about performing tasks which require mental alertness (eg, operating machinery or driving).

• Heat prostration: May occur in the presence of increased environmental temperature; use caution in hot weather and/or exercise.

Disease-related concerns:

• Bladder flow obstruction: Use with caution in patients with bladder flow obstruction; may increase the risk of urinary retention.

• Gastrointestinal disease: Use with caution in patients with decreased GI motility (severe constipation, ulcerative colitis) or GI obstructive disorders ( pyloric stenosis); may increase the risk of gastric retention.

• Glaucoma: Use with caution in patients with controlled (treated) narrow-angle glaucoma.

• Hepatic impairment: Use with caution in patients with hepatic impairment; dosage adjustment required in moderate hepatic impairment (Child-Pugh class B). Not recommended for use in severe hepatic impairment (Child-Pugh class C).

• Myasthenia gravis: Use with caution in patients with myasthenia gravis.

Monitoring Parameters

Anticholinergic effects (eg, CNS effects [headache, confusion, hallucinations, somnolence], fixed and dilated pupils, blurred vision, tremors, dry skin); hepatic function.

Pregnancy Risk Factor

C

Pregnancy Considerations

Adverse events have been observed in animal reproduction studies.

Patient Education

What is this drug used for?

• It is used to treat an overactive bladder.

All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:

• Heartburn

• Dry mouth

• Upset stomach

• Headache

WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:

• Urinary tract infection like blood in the urine, burning or painful urination, feeling the need to pass urine often or right away, fever, lower stomach pain, or pelvic pain

• Confusion

• Sensing things that seem real but are not

• Feeling sleepy

• Severe constipation

• Severe stomach pain

• Trouble urinating

• Vision changes

• Lack of sweating

• Feeling tired or weak

• Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.

Note: This is not a comprehensive list of all side effects. Talk to your doctor if you have questions.

Consumer Information Use and Disclaimer: This information should not be used to decide whether or not to take this medicine or any other medicine. Only the healthcare provider has the knowledge and training to decide which medicines are right for a specific patient. This information does not endorse any medicine as safe, effective, or approved for treating any patient or health condition. This is only a limited summary of general information about the medicine's uses from the patient education leaflet and is not intended to be comprehensive. This limited summary does NOT include all information available about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to this medicine. This information is not intended to provide medical advice, diagnosis or treatment and does not replace information you receive from the healthcare provider. For a more detailed summary of information about the risks and benefits of using this medicine, please speak with your healthcare provider and review the entire patient education leaflet.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.