Medicine guide

Tolterodine Tartrate

4 mg · Capsule, Extended Release

  • Prescription only
  • Cholinergic Muscarinic Antagonist
Active substance
Tolterodine Tartrate
Made by
Golden State Medical Supply, Inc.

Quoted from the official source. Not yet reviewed by Mediclarum — the leaflet in your pack is authoritative.

At a glance

Quoted from the official label · 2026-01-06

What it is

Cholinergic Muscarinic Antagonist

Used for
The label’s usual adult dose

DOSAGE AND ADMINISTRATION 4 mg capsules taken orally once daily with water and swallowed whole ( 2.1 ) 2 mg capsules taken orally once daily with water and swallowed whole in the presence of:

Full directions ↓
Do not take it if

CONTRAINDICATIONS Tolterodine tartrate extended-release capsules are contraindicated in patients with urinary retention, gastric retention, or uncontrolled narrow-angle glaucoma.

All warnings ↓
Good to know
  • Prescription only
  • FDA enforcement reports list no ongoing recall, and none from the last two years, for this product code · checked 2026-10-02
28other products contain Tolterodine Tartrate — compare makers, forms and strengths

Every line above is selected, not written, from the official label. Nothing is reworded. DailyMed

What it is for

  • 1.
  • INDICATIONS AND USAGE Tolterodine tartrate extended-release capsules, USP are indicated for the treatment of overactive bladder with symptoms of urge urinary incontinence, urgency, and frequency [see CLINICAL STUDIES (14) ] .
  • Tolterodine tartrate extended-release capsules, USP are an antimuscarinic indicated for the treatment of overactive bladder with symptoms of urge urinary incontinence, urgency, and frequency.
  • (1)

From the official label · 2026-01-06 · DailyMed

How it works

From this product’s own US prescribing label.

Tolterodine acts as a competitive antagonist of acetylcholine at postganglionic muscarinic receptors.

Both urinary bladder contraction and salivation are mediated via cholinergic muscarinic receptors.

Peak level after2–6 h
How the body breaks it down

Tolterodine is extensively metabolized by the liver following oral dosing.

With food

Effect of Food: There is no effect of food on the pharmacokinetics of tolterodine extended release.

Quoted from the prescribing label, sections “Mechanism of Action” and “Pharmacokinetics”. DailyMed · 2026-01-06

Do not take it if

  • 4.
  • CONTRAINDICATIONS Tolterodine tartrate extended-release capsules are contraindicated in patients with urinary retention, gastric retention, or uncontrolled narrow-angle glaucoma.
  • Tolterodine tartrate extended-release capsules are also contraindicated in patients with known hypersensitivity to the drug or its ingredients, or to fesoterodine fumarate extended-release tablets which, like tolterodine tartrate extended-release capsules, are metabolized to 5-hydroxymethyl tolterodine [see WARNINGS AND PRECAUTIONS (5.2), (5.3), (5.4) ].
  • Tolterodine tartrate extended-release capsules are contraindicated in patients with urinary retention, gastric retention, or uncontrolled narrow-angle glaucoma.
  • Tolterodine tartrate extended-release capsules are also contraindicated in patients with known hypersensitivity to the drug or its ingredients, or to fesoterodine fumarate extended-release tablets which, like tolterodine tartrate extended-release capsules, are metabolized to 5-hydroxymethyl tolterodine.
  • ( 4 )

Quoted from the official label, section “Contraindications”.

How to take it

These directions are for this exact strength and form. Another one is different.

  • 2.
  • DOSAGE AND ADMINISTRATION 4 mg capsules taken orally once daily with water and swallowed whole ( 2.1 ) 2 mg capsules taken orally once daily with water and swallowed whole in the presence of:
  • mild to moderate hepatic impairment (Child-Pugh class A or B ( 2.2 ) severe renal impairment [Creatinine Clearance (CCr) 10-30 mL/min] ( 2.2 ) drugs that are potent CYP3A4 inhibitors.
  • ( 2.2 ) Tolterodine tartrate extended-release capsules are not recommended for use in patients with CCr <10 mL/min.
  • ( 2.2 ) Tolterodine tartrate extended-release capsules are not recommended for use in patients with severe hepatic impairment (Child-Pugh Class C).
  • ( 2.2 )
  • 2.1 Dosing Information The recommended dose of tolterodine tartrate extended-release capsules is 4 mg once daily with water and swallowed whole.
  • The dose may be lowered to 2 mg daily based on individual response and tolerability; however, limited efficacy data are available for tolterodine tartrate extended-release capsules 2 mg [see CLINICAL STUDIES (14) ] .
  • 2.2 Dosage Adjustment in Specific Populations For patients with mild to moderate hepatic impairment (Child-Pugh Class A or B) or severe renal impairment (CCr 10 - 30 mL/min), the recommended dose of tolterodine tartrate extended-release capsules is 2 mg once daily.
  • Tolterodine tartrate extended-release capsules are not recommended for use in patients with severe hepatic impairment (Child-Pugh Class C).
  • Patients with CCr<10 mL/min have not been studied and use of tolterodine tartrate extended-release capsules in this population is not recommended [see WARNINGS AND PRECAUTIONS (5.6) and USE IN SPECIFIC POPULATIONS (8.6, 8.7) ].
  • 2.3 Dosage Adjustment in Presence of Concomitant Drugs For patients who are taking drugs that are potent inhibitors of CYP3A4 [e.g. ketoconazole, clarithromycin, ritonavir], the recommended dose of tolterodine tartrate extended-release capsules is 2 mg once daily [see DRUG INTERACTIONS (7.2) ].

Quoted from the official label, section “Dosage & Administration”.

Other warnings

  • 5.
  • WARNINGS AND PRECAUTIONS Anaphylaxis and angioedema requiring hospitalization and emergency medical treatment have occurred with the first or subsequent doses of tolterodine tartrate extended-release capsules.
  • ( 5.1 ) Urinary Retention:
  • use caution in patients with clinically significant bladder outflow obstruction because of the risk of urinary retention.
  • ( 5.2 ) Gastrointestinal Disorders:
  • use caution in patients with gastrointestinal obstructive disorders or decreased gastrointestinal motility because of the risk of gastric retention.
  • ( 5.3 ) Controlled Narrow-Angle Glaucoma:
  • use caution in patients being treated for narrow-angle glaucoma.
  • ( 5.4 ) Central Nervous System Effects:
  • Somnolence has been reported with tolterodine tartrate extended-release capsules.
  • Advise patients not to drive or operate heavy machinery until they know how tolterodine tartrate extended-release capsules affect them.
  • ( 5.5 ) Myasthenia Gravis: use caution in patients with myasthenia gravis.
  • ( 5.8 ) QT Prolongation:
  • consider observations from the thorough QT study in clinical decisions to prescribe tolterodine tartrate extended-release capsules to patients with a known history of QT prolongation or to patients who are taking Class IA (e.g., quinidine, procainamide) or Class III (e.g., amiodarone, sotalol) antiarrhythmic medications ( 5.9 )
  • 5.1 Angioedema Anaphylaxis and angioedema requiring hospitalization and emergency medical treatment have occurred with the first or subsequent doses of tolterodine tartrate extended-release capsules.
  • In the event of difficulty in breathing, upper airway obstruction, or fall in blood pressure, tolterodine tartrate extended-release capsules should be discontinued and appropriate therapy promptly provided.
  • 5.2 Urinary Retention Administer tolterodine tartrate extended-release capsules with caution to patients with clinically significant bladder outflow obstruction because of the risk of urinary retention [see CONTRAINDICATIONS (4) ].
  • 5.3 Gastrointestinal Disorders Administer tolterodine tartrate extended-release capsules with caution in patients with gastrointestinal obstructive disorders because of the risk of gastric retention.
  • Tolterodine tartrate extended-release capsules, like other antimuscarinic drugs, may decrease gastrointestinal motility and should be used with caution in patients with conditions associated with decreased gastrointestinal motility (e.g. intestinal atony) [see CONTRAINDICATIONS (4) ].
  • 5.4 Controlled Narrow-Angle Glaucoma Administer tolterodine tartrate extended-release capsules with caution in patients being treated for narrow-angle glaucoma [see CONTRAINDICATIONS (4) ].
  • 5.5 Central Nervous System Effects Tolterodine tartrate extended-release capsules are associated with anticholinergic central nervous system (CNS) effects [see Adverse Reactions (6.2) ] including dizziness and somnolence [see Adverse Reactions (6.1) ].
  • Patients should be monitored for signs of anticholinergic CNS effects, particularly after beginning treatment or increasing the dose.
  • Advise patients not to drive or operate heavy machinery until the drug’s effects have been determined.
  • If a patient experiences anticholinergic CNS effects, dose reduction or drug discontinuation should be considered.
  • 5.6 Hepatic Impairment The clearance of orally administered tolterodine immediate release was substantially lower in cirrhotic patients than in the healthy volunteers.
  • For patients with mild to moderate hepatic impairment (Child-Pugh Class A or B), the recommended dose for tolterodine tartrate extended-release capsules is 2 mg once daily.
  • Tolterodine tartrate extended release-capsules are not recommended for use in patients with severe hepatic impairment (Child-Pugh Class C) [see DOSAGE AND ADMINISTRATION (2.2) and USE IN SPECIFIC POPULATIONS(8.6) ].
  • 5.7 Renal Impairment Renal impairment can significantly alter the disposition of tolterodine and its metabolites.
  • The dose of tolterodine tartrate extended-release capsules should be reduced to 2 mg once daily in patients with severe renal impairment (CCr:
  • 10-30 mL/min).
  • Patients with CCr<10 mL/min have not been studied and use of tolterodine tartrate extended-release capsules in this population is not recommended [see DOSAGE AND ADMINISTRATION (2.2) and USE IN SPECIFIC POPULATIONS (8.7) ] .
  • 5.8 Myasthenia Gravis Administer tolterodine tartrate extended-release capsules with caution in patients with myasthenia gravis, a disease characterized by decreased cholinergic activity at the neuromuscular junction .
  • 5.9 Use in Patients with Congenital or Acquired QT Prolongation In a study of the effect of tolterodine immediate release tablets on the QT interval [see CLINICAL PHARMACOLOGY (12.2) ] , the effect on the QT interval appeared greater for 8 mg/day (two times the therapeutic dose) compared to 4 mg/day and was more pronounced in CYP2D6 poor metabolizers (PM) than extensive metabolizers (EMs).
  • The effect of tolterodine 8 mg/day was not as large as that observed after four days of therapeutic dosing with the active control moxifloxacin.
  • However, the confidence intervals overlapped.
  • These observations should be considered in clinical decisions to prescribe tolterodine tartrate extended-release capsules to patients with a known history of QT prolongation or to patients who are taking Class IA (e.g., quinidine, procainamide) or Class III (e.g., amiodarone, sotalol) antiarrhythmic medications.
  • There has been no association of Torsade de Pointes in the international post-marketing experience with tolterodine immediate release tablets or tolterodine tartrate extended-release capsules.

Quoted from the official label, section “Warnings”.

Pregnancy and breastfeeding

  • Risk Summary There are no available data with tolterodine tartrate extended-release capsules use in pregnant women to inform drug-associated risks.
  • In animal reproduction studies, oral administration of tolterodine and its 5-HMT metabolite to pregnant mice during organogenesis did not produce adverse developmental outcomes at doses approximately 9 to 12 times the clinical exposure at a dose of 20 mg/kg/day; however, higher doses produced adverse developmental outcomes (see Data) .
  • In the U.S. general population, the estimated background rate of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20%, respectively.
  • Data Animal Data No anomalies or malformations were observed after oral administration of tolterodine to pregnant mice during organogenesis at approximately 9-12 times the clinical exposure to the pharmacologically active components of tolterodine tartrate extended-release capsules (based on the AUC of tolterodine and its 5-HMT metabolite at a dose of 20 mg/kg/day).
  • At 1418 times the clinical exposure (doses of 30 to 40 mg/kg/day) in mice, tolterodine was embryo-lethal, caused reduced fetal weight, and increased the incidence of fetal abnormalities (cleft palate, digital abnormalities, intra-abdominal hemorrhage, and various skeletal abnormalities, primarily reduced ossification).
  • Pregnant rabbits administered tolterodine subcutaneously at about 0.3-2.5 times the clinical exposure (dose of 0.8 mg/kg/day) did not show any embryotoxicity or teratogenicity.
  • 8.
  • USE IN SPECIFIC POPULATIONS Renal Impairment:
  • Tolterodine tartrate extended-release capsules are not recommended for use in patients with CCr <10 mL/min.
  • Dose adjustment in severe renal impairment (CCr: 10-30 mL/min).
  • ( 8.6 ) Hepatic Impairment:
  • Not recommended for use in severe hepatic impairment (Child-Pugh Class C).
  • Dose adjustment in mild to moderate hepatic impairment (Child-Pugh Class A, B).
  • ( 8.7 )
  • 8.1 Pregnancy Risk Summary There are no available data with tolterodine tartrate extended-release capsules use in pregnant women to inform drug-associated risks.
  • In animal reproduction studies, oral administration of tolterodine and its 5-HMT metabolite to pregnant mice during organogenesis did not produce adverse developmental outcomes at doses approximately 9 to 12 times the clinical exposure at a dose of 20 mg/kg/day; however, higher doses produced adverse developmental outcomes (see Data) .
  • In the U.S. general population, the estimated background rate of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20%, respectively.
  • Data Animal Data No anomalies or malformations were observed after oral administration of tolterodine to pregnant mice during organogenesis at approximately 9-12 times the clinical exposure to the pharmacologically active components of tolterodine tartrate extended-release capsules (based on the AUC of tolterodine and its 5-HMT metabolite at a dose of 20 mg/kg/day).
  • At 1418 times the clinical exposure (doses of 30 to 40 mg/kg/day) in mice, tolterodine was embryo-lethal, caused reduced fetal weight, and increased the incidence of fetal abnormalities (cleft palate, digital abnormalities, intra-abdominal hemorrhage, and various skeletal abnormalities, primarily reduced ossification).
  • Pregnant rabbits administered tolterodine subcutaneously at about 0.3-2.5 times the clinical exposure (dose of 0.8 mg/kg/day) did not show any embryotoxicity or teratogenicity.
  • 8.2 Lactation Risk Summary There is no information on the presence of tolterodine or its 5-HMT metabolite in human milk, the effects on the breastfed infant, or the effects on milk production.
  • Based on limited data, tolterodine is excreted into the milk in mice in low amounts ( see Data ).
  • The development and health benefits of breastfeeding should be considered along with the mother’s clinical need for tolterodine tartrate extended-release capsules and any potential adverse effects on the breastfed infant from tolterodine tartrate extended-release capsules or from the underlying maternal condition.
  • Animal Data The use of radiolabeled tolterodine in pregnant mice produced milk:
  • plasma ratios that ranged between 0.0 and 0.7.
  • 8.4 Pediatric Use The effectiveness of tolterodine tartrate extended-release capsules has not been established in pediatric patients.
  • Efficacy was not established in two randomized, placebo-controlled, double-blind, 12-week studies that enrolled 710 pediatric patients (486 on tolterodine tartrate extended-release capsules, 224 on placebo) aged 5–10 years with urinary frequency and urge incontinence.
  • The percentage of patients with urinary tract infections was higher in patients treated with tolterodine tartrate extended-release capsules (6.6%) compared to patients who received placebo (4.5%).
  • Aggressive, abnormal, and hyperactive behavior and attention disorders occurred in 2.9% of children treated with tolterodine tartrate extended-release capsules compared to 0.9% of children treated with placebo.
  • 8.5 Geriatric Use No overall differences in safety were observed between the older and younger patients treated with tolterodine.
  • In multiple-dose studies in which tolterodine immediate release 4 mg (2 mg bid) was administered, serum concentrations of tolterodine and of 5-HMT were similar in healthy elderly volunteers (aged 64 through 80 years) and healthy young volunteers (aged less than 40 years).
  • In another clinical study, elderly volunteers (aged 71 through 81 years) were given tolterodine immediate release 2 or 4 mg (1 or 2 mg bid).
  • Mean serum concentrations of tolterodine and 5-HMT in these elderly volunteers were approximately 20% and 50% higher, respectively, than concentrations reported in young healthy volunteers.
  • However, no overall differences were observed in safety between older and younger patients on tolterodine in the Phase 3, 12-week, controlled clinical studies; therefore, no tolterodine dosage adjustment for elderly patients is recommended.
  • 8.6 Renal Impairment Renal impairment can significantly alter the disposition of tolterodine immediate release and its metabolites.
  • In a study conducted in patients with creatinine clearance between 10 and 30 mL/min, tolterodine and 5-HMT levels were approximately 2–3 fold higher in patients with renal impairment than in healthy volunteers.
  • Exposure levels of other metabolites of tolterodine (e.g., tolterodine acid, N -dealkylated tolterodine acid, N- dealkylated tolterodine and N -dealkylated hydroxy tolterodine) were significantly higher (10–30 fold) in renally impaired patients as compared to the healthy volunteers.
  • The recommended dose for patients with severe renal impairment (CCr:
  • 10-30 mL/min) is tolterodine tartrate extended-release capsules 2 mg daily.
  • Patients with CCr<10 mL/min have not been studied and use of tolterodine tartrate extended-release capsules in this population is not recommended [see DOSAGE AND ADMINISTRATION (2.2) and WARNINGS and PRECAUTIONS (5.6) ] .Tolterodine tartrate extended-release capsules have not been studied in patients with mild to moderate renal impairment [CCr 30-80 mL/min].
  • 8.7 Hepatic Impairment Liver impairment can significantly alter the disposition of tolterodine immediate release.
  • In a study of tolterodine immediate release conducted in cirrhotic patients (Child-Pugh Class A and B), the elimination half-life of tolterodine immediate release was longer in cirrhotic patients (mean, 7.8 hours) than in healthy, young, and elderly volunteers (mean, 2 to 4 hours).
  • The clearance of orally administered tolterodine immediate release was substantially lower in cirrhotic patients (1.0 ±
  • 1.7 L/h/kg) than in the healthy volunteers (5.7 ±
  • 3.8 L/h/kg).
  • The recommended dose for patients with mild to moderate hepatic impairment (Child-Pugh Class A or B) is tolterodine tartrate extended-release capsules 2 mg once daily.
  • Tolterodine tartrate extended-release capsules are not recommended for use in patients with severe hepatic impairment (Child-Pugh Class C) [see DOSAGE AND ADMINISTRATION (2.2) and WARNINGS AND PRECAUTIONS (5.6) ] .

Quoted from the official label, section “OTC — Pregnancy or Breast Feeding”.

Other medicines

  • 7.
  • DRUG INTERACTIONS Potent CYP3A4 inhibitors:
  • Coadministration may increase systemic exposure to tolterodine tartrate extended-release capsules.
  • Reduce tolterodine tartrate extended-release capsules dose to 2 mg once daily.
  • ( 7.2 ) Other Anticholinergics (antimuscarinics):
  • Concomitant use with other anticholinergic agents may increase the frequency and/or severity of dry mouth, constipation, blurred vision, and other anticholinergic pharmacological effects.
  • ( 7.6 )
  • 7.1 Potent CYP2D6 Inhibitors Fluoxetine, a potent inhibitor of CYP2D6 activity, significantly inhibited the metabolism of tolterodine immediate release in CYP2D6 extensive metabolizers, resulting in a 4.8-fold increase in tolterodine AUC.
  • There was a 52% decrease in C max and a 20% decrease in AUC of 5-hydroxymethyl tolterodine (5-HMT), the pharmacologically active metabolite of tolterodine [see CLINICAL PHARMACOLOGY (12.1) ] .
  • The sums of unbound serum concentrations of tolterodine and 5-HMT are only 25% higher during the interaction.
  • No dose adjustment is required when tolterodine and fluoxetine are co-administered [see CLINICAL PHARMACOLOGY (12.3) ].
  • 7.2 Potent CYP3A4 Inhibitors Ketoconazole (200 mg daily), a potent CYP3A4 inhibitor, increased the mean C max and AUC of tolterodine by 2- and 2.5-fold, respectively in CYP2D6 poor metabolizers.
  • For patients receiving ketoconazole or other potent CYP3A4 inhibitors such as itraconazole, clarithromycin or ritonavir, the recommended dose of tolterodine tartrate extended release capsules is 2 mg once daily [see DOSAGE AND ADMINISTRATION (2.2) and CLINICAL PHARMACOLOGY (12.3) ] .
  • 7.3 Other interactions No clinically relevant interactions have been observed when tolterodine was co-administered with warfarin, with a combined oral contraceptive drug containing ethinyl estradiol and levonorgestrel, or with diuretics [see CLINICAL PHARMACOLOGY (12.3) ].
  • 7.4 Other drugs metabolized by Cytochrome P450 Isoenzymes In vivo drug-interaction data show that tolterodine immediate release does not result in clinically relevant inhibition of CYP1A2, 2D6, 2C9, 2C19, or 3A4 as evidenced by lack of influence on the marker drugs caffeine, debrisoquine, S-warfarin, and omeprazole [see CLINICAL PHARMACOLOGY (12.3) ].
  • 7.5 Drug-Laboratory-Test Interactions Interactions between tolterodine and laboratory tests have not been studied.
  • 7.6 Other Anticholinergics The concomitant use of tolterodine tartrate extended-release capsules with other anticholinergic (antimuscarinic) agents may increase the frequency and/or severity of dry mouth, constipation, blurred vision, somnolence and other anticholienrgic pharmacological effects.

Quoted from the official label, section “Drug Interactions”.

If you take too much

In an emergency, call your local emergency number or a poison control centre.

  • 10.
  • OVERDOSAGE Overdosage with tolterodine tartrate extended-release capsules can potentially result in severe central anticholinergic effects and should be treated accordingly.
  • ECG monitoring is recommended in the event of overdosage.
  • In dogs, changes in the QT interval (slight prolongation of 10% to 20%) were observed at a suprapharmacologic dose of 4.5 mg/kg, which is about 68 times higher than the recommended human dose.
  • In clinical trials of normal volunteers and patients, QT interval prolongation was observed with tolterodine immediate release at doses up to 8 mg (4 mg bid) and higher doses were not evaluated [see WARNINGS AND PRECAUTIONS (5.9) and CLINICAL PHARMACOLOGY (12.2) ] .
  • A 27-month-old child who ingested 5 to 7 tolterodine immediate release 2 mg tablets was treated with a suspension of activated charcoal and was hospitalized overnight with symptoms of dry mouth.
  • The child fully recovered.

Quoted from the official label, section “Overdosage”.

Use in children

  • The effectiveness of tolterodine tartrate extended-release capsules has not been established in pediatric patients.
  • Efficacy was not established in two randomized, placebo-controlled, double-blind, 12-week studies that enrolled 710 pediatric patients (486 on tolterodine tartrate extended-release capsules, 224 on placebo) aged 5–10 years with urinary frequency and urge incontinence.
  • The percentage of patients with urinary tract infections was higher in patients treated with tolterodine tartrate extended-release capsules (6.6%) compared to patients who received placebo (4.5%).
  • Aggressive, abnormal, and hyperactive behavior and attention disorders occurred in 2.9% of children treated with tolterodine tartrate extended-release capsules compared to 0.9% of children treated with placebo.

Quoted from the official label, section “Pediatric Use”.

Use in older people

  • No overall differences in safety were observed between the older and younger patients treated with tolterodine.
  • In multiple-dose studies in which tolterodine immediate release 4 mg (2 mg bid) was administered, serum concentrations of tolterodine and of 5-HMT were similar in healthy elderly volunteers (aged 64 through 80 years) and healthy young volunteers (aged less than 40 years).
  • In another clinical study, elderly volunteers (aged 71 through 81 years) were given tolterodine immediate release 2 or 4 mg (1 or 2 mg bid).
  • Mean serum concentrations of tolterodine and 5-HMT in these elderly volunteers were approximately 20% and 50% higher, respectively, than concentrations reported in young healthy volunteers.
  • However, no overall differences were observed in safety between older and younger patients on tolterodine in the Phase 3, 12-week, controlled clinical studies; therefore, no tolterodine dosage adjustment for elderly patients is recommended.

Quoted from the official label, section “Geriatric Use”.

Side effects

  • 6.
  • ADVERSE REACTIONS Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.
  • The most common adverse reactions (incidence > 4% and >placebo) were dry mouth, headache, constipation, and abdominal pain.
  • ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Inventia Healthcare Limited, at 1-800-270-7585 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
  • 6.1 Clinical Trials Experience The efficacy and safety of tolterodine tartrate extended-release capsules was evaluated in 1073 patients (537 assigned to tolterodine tartrate extended-release capsules; 536 assigned to placebo) who were treated with 2, 4, 6, or 8 mg/day for up to 15 months.
  • These included a total of 1012 patients (505 randomized to tolterodine tartrate extended-release capsules 4 mg once daily and 507 randomized to placebo) enrolled in a randomized, placebo-controlled, double-blind, 12-week clinical efficacy and safety study.
  • Adverse events were reported in 52% (n=263) of patients receiving tolterodine tartrate extended-release capsules and in 49% (n=247) of patients receiving placebo.
  • The most common adverse events reported by patients receiving tolterodine tartrate extended-release capsules were dry mouth, headache, constipation, and abdominal pain.
  • Dry mouth was the most frequently reported adverse event for patients treated with tolterodine tartrate extended-release capsules, occurring in 23.4% of patients treated with tolterodine tartrate extended-release capsules and 7.7% of placebo-treated patients.
  • Dry mouth, constipation, abnormal vision (accommodation abnormalities), urinary retention, and dry eyes are expected side effects of antimuscarinic agents.
  • A serious adverse event was reported by 1.4% (n=7) of patients receiving tolterodine tartrate extended-release capsules and by 3.6% (n=18) of patients receiving placebo.
  • Table 1 lists the adverse events, regardless of causality, that were reported in the randomized, double-blind, placebo-controlled 12-week study at an incidence greater than placebo and in greater than or equal to 1% of patients treated with tolterodine tartrate extended-release capsules 4 mg once daily.
  • Table 1.
  • Incidence* (%) of Adverse Events Exceeding Placebo Rate and Reported in ≥1% of Patients Treated with Tolterodine Tartrate Extended-Release Capsules (4 mg daily) in a 12-week, Phase 3 Clinical Trial * in nearest integer.
  • Body System Adverse Event % Tolterodine tartrate extended-release capsules n=505 % Placebo n=507 Autonomic Nervous dry mouth 23 8 General headache 6 5 fatigue 2 1 Central/Peripheral Nervous dizziness 2 1 Gastrointestinal constipation 6 4 abdominal pain 4 2 dyspepsia 3 1 Vision xerophthalmia 3 2 vision abnormal 1 0 Psychiatric somnolence 3 2 anxiety 1 0 Respiratory sinusitis 2 1 Urinary dysuria 1 0 The frequency of discontinuation due to adverse events was highest during the first 4 weeks of treatment.
  • Similar percentages of patients treated with tolterodine tartrate extended-release capsules or placebo discontinued treatment due to adverse events.
  • Dry mouth was the most common adverse event leading to treatment discontinuation among patients receiving tolterodine tartrate extended-release capsules [n=12 (2.4%) vs. placebo n=6 (1.2%)].
  • 6.2 Post-marketing Experience The following events have been reported in association with tolterodine use in worldwide post-marketing experience:
  • General:
  • anaphylaxis and angioedema;
  • Cardiovascular: tachycardia, palpitations, peripheral edema;
  • Gastrointestinal : diarrhea ;
  • Central/Peripheral Nervous: confusion, disorientation, memory impairment, hallucinations.
  • Reports of aggravation of symptoms of dementia (e.g., confusion, disorientation, delusion) have been reported after tolterodine therapy was initiated in patients taking cholinesterase inhibitors for the treatment of dementia.
  • Because these spontaneously reported events are from the worldwide post-marketing experience, the frequency of events and the role of tolterodine in their causation cannot be reliably determined.

Quoted from the official label, section “Adverse Reactions”.

What to discuss with your doctor

  • 17.
  • PATIENT COUNSELING INFORMATION Advise the patient to read the FDA-approved patient labeling (Patient Information).
  • Antimuscarinic Effects Inform patients that antimuscarinic agents such as tolterodine tartrate extended-release capsules may have side effects including blurred vision, dizziness, or drowsiness.
  • Advise patients not to drive, operate machinery, or do other potentially dangerous activities until they know how tolterodine tartrate extended-release capsules affects them. 10320 Rev 04/25

Quoted from the official label, section “Patient Counseling Information”.

Strengths and forms

  • 3.
  • DOSAGE FORMS AND STRENGTHS The 2 mg capsules are white to off white spherical to oval pellets filled in hard gelatin capsule shells of size "4" with "┐ L " imprinted in grey colour ink on opaque green colored cap and "013" imprinted in black ink on opaque white colored body.
  • The 4 mg capsules are white to off white spherical to oval pellets filled in hard gelatin capsule shells of size "3" with "┐ L " imprinted in grey colour ink on opaque blue colored cap and "014" imprinted in black ink on opaque white colored body.
  • Capsules: 2 mg and 4 mg ( 3 )

Quoted from the official label, section “Dosage Forms & Strengths”.

What it looks like and how it is packed

  • 16.
  • HOW SUPPLIED/STORAGE AND HANDLING Tolterodine Tartrate Extended-release Capsules, USP are available containing 2 mg or 4 mg of tolterodine tartrate.
  • The 2 mg capsule is white to off white spherical to oval pellets filled in hard gelatin capsule shells of size “4” with "┐ L " imprinted in grey color ink on opaque green colored cap and “013” imprinted in black ink on opaque white colored body.
  • NDC 51407-739-30 Bottles of 30 capsules NDC 51407-739-90 Bottles of 90 capsules NDC 51407-739-05 Bottles of 500 capsules The 4 mg capsule is white to off white spherical to oval pellets filled in hard gelatin capsule shells of size “3” with "┐ L " imprinted in grey color ink on opaque blue colored cap and “014” imprinted in black ink on opaque white colored body.
  • NDC 51407-740-30 Bottles of 30 capsules NDC 51407-740-90 Bottles of 90 capsules NDC 51407-740-05 Bottles of 500 capsules
  • Store at 25° (77°F); excursions permitted to 15° to 30°C (59 to 86°F) [see USP Controlled Room Temperature].
  • Protect from light.

Quoted from the official label, section “How Supplied”.

What is in it

  • 11.
  • DESCRIPTION Tolterodine tartrate extended-release capsules, USP contain tolterodine tartrate USP.
  • The active moiety, tolterodine, is a muscarinic receptor antagonist.
  • The chemical name of tolterodine tartrate is (R)-N,N-diisopropyl-3-(2-hydroxy-5methylphenyl)-3-phenylpropanamine L-hydrogen tartrate.
  • The empirical formula of tolterodine tartrate is C 26 H 37 NO 7 , Its structure is:
  • Tolterodine tartrate is a white, crystalline powder with a molecular weight of 475.6.
  • The pK a value is 9.87 and the solubility in water is 12 mg/mL.
  • It is soluble in methanol, slightly soluble in ethanol, and practically insoluble in toluene.
  • The partition coefficient (Log D) between n-octanol and water is 1.83 at pH 7.3.
  • Tolterodine tartrate extended-release capsules 4 mg for oral administration contains 4 mg of tolterodine tartrate.
  • Inactive ingredients are colloidal silicon dioxide, dibutyl sebacate, ethylcellulose, FD & C Blue no.2, gelatin, hypromellose, hypromellose phthalate, sucrose, talc and titanium dioxide.
  • Tolterodine tartrate extended-release capsules 2 mg for oral administration contains 2 mg of tolterodine tartrate, and the following Inactive ingredients are colloidal silicon dioxide, dibutyl sebacate, ethylcellulose, FD & C Blue no.2, gelatin, hypromellose, hypromellose phthalate, iron oxide yellow, sucrose, talc and titanium dioxide.
  • Both the 2 mg and 4 mg capsule strengths are imprinted with a pharmaceutical grade printing ink that contains ammonium hydroxide, iron oxide black, shellac, potassium hydroxide, propylene glycol and titanium dioxide.
  • Meets USP Dissolution Test 3. tolterodine-01

Quoted from the official label, section “Description”.

Ingredients people check for

Lactose, gluten, dyes, sugars and other ingredients that matter with an allergy, intolerance or diet — as this product’s FDA label lists them.

  • SugarssucroseRelevant to diabetes and dental health.
  • GelatingelatinAnimal-derived: matters for vegetarian, vegan, halal and kosher diets.
  • Titanium dioxidetitanium dioxideA whitening agent no longer allowed in food in the EU (E171).

Quoted from the FDA label. A label that does not name an ingredient is not a guarantee that the product is free of it, and formulations change. With an allergy, check the pack and ask a pharmacist.

Same active substance, strength and form in other countries

Matched on active substance, strength and kind of form only. This is not a statement that the products are equivalent or interchangeable: other ingredients, release and approved uses can differ — ask a pharmacist before swapping.

Medicine passport: one printable page to show a pharmacist abroad

Details

Made byGolden State Medical Supply, Inc.
Active substanceTolterodine Tartrate
Strength4 mg
FormCapsule, Extended Release
RouteOral
Packs500 CAPSULE, EXTENDED RELEASE in 1 BOTTLE · 30 CAPSULE, EXTENDED RELEASE in 1 BOTTLE
NDC51407-740

Source: NDC Directory · 2026-09-13 · not reviewed by a clinician

Source: US Food and Drug Administration, NDC Directory. Reuse terms: US government work (FDA).

Other strengths and forms

32 products are sold under this name. Grouped by form; a number on a strength means several companies make it.

Same active substance

These contain the same substance. That does not mean one can replace another — ask a pharmacist.