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Darifenacin

    DEA Class;  Rx

    Common Brand Names; Enablex

    • Anticholinergics, Genitourinary

    Oral competitive selective antimuscarinic (M3); reduces incontinence episodes and urinary urgency
    Used for treatment of overactive bladder (OAB) in adults; used as monotherapy or in combination with a beta-3 adrenoreceptor agonist if needed
    Comparable to oxybutynin in efficacy; less dry mouth and CNS side effects

    Indicated for the treatment of overactive bladder (OAB) with symptoms of urge urinary incontinence, urinary urgency, and urinary frequency.

    Urinary retention

    Gastric retention

    Uncontrolled narrow-angle glaucoma

    Hypersensitivity

    >10%

    • Dry mouth (19-35%)
    • Constipation (15-21%)

    1-10%

    • Abdominal pain (2-4%)
    • Dizziness (2%)
    • Dry eyes (2%)
    • Dyspepsia (3-8%)
    • Nausea (2-4%)
    • UTI (4-5%)
    • Vaginitis (>1%)
    • Back pain (>1%)
    • Rhinitis (>1%)
    • Abnormal vision (>2%)
    • Vomiting (>1%)
    • Weight gain (>1%)
    • Flu-like syndrome (1-3%)
    • Peripheral edema (>1%)

    Heat prostration may occur in the presence of increased environmental temperature

    Use caution in patients with decreased GI motility, hiatal hernia, reflux esophagitis, and ulcerative colitis

    Administer with caution to patients with clinically significant bladder outflow, obstruction because of the risk of urinary retention

    Administer with caution to patients with gastrointestinal obstructive disorders because of risk of gastric retention; like other anticholinergic drugs, this drug may decrease gastrointestinal motility and should be used with caution in patients with conditions such as severe constipation, ulcerative colitis, and myasthenia gravis

    Use with caution in patients being treated for narrow-angle glaucoma and only where potential benefits outweigh risk

    There are no available data on use in pregnant women to evaluate for a drug-associated risk of major birth defects, miscarriage, or other adverse maternal or fetal outcomes

    There are no data on presence of drug in human milk, effects on breastfed infant, or on milk production

    The drug is present in rat milk; when a drug is present in animal milk, it is likely that the drug will be present in human milk

    Adults

    15 mg/day PO.

    Geriatric

    15 mg/day PO.

    Adolescents

    Safety and efficacy have not been established.

    Children

    Safety and efficacy have not been established.

    Infants

    Not indicated.

    Darifenacin

    Tablet, extended release

    • 7.5mg
    • 15mg