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TOVIAZ 4 mg prolonged-release tablets & TOVIAZ 8 mg prolonged-release tablets

Last Updated on eMC 23-Oct-2014 View changes  | Pfizer Limited Contact details

1. Name of the medicinal product

TOVIAZ 4 mg prolonged-release tablets

TOVIAZ 8 mg prolonged-release tablets

2. Qualitative and quantitative composition

Each 4mg prolonged-release tablet contains fesoterodine fumarate 4 mg corresponding to 3.1 mg of fesoterodine.

Each 8mg prolonged-release tablet contains fesoterodine fumarate 8 mg corresponding to 6.2 mg of fesoterodine.

Excipients with known effect:

Each 4 mg prolonged-release tablet contains 0.525 mg of soya lecithin and 91.125 mg of lactose.

Each 8 mg prolonged-release tablet contains 0.525 mg of soya lecithin and 58.125 mg of lactose.

For the full list of excipients, see section 6.1.

3. Pharmaceutical form

Prolonged-release tablet

The 4 mg tablets are light blue, oval, biconvex, film-coated, and engraved on one side with the letters 'FS'.

The 8 mg tablets are blue, oval, biconvex, film-coated, and engraved on one side with the letters 'FT'.

4. Clinical particulars
4.1 Therapeutic indications

Treatment of the symptoms (increased urinary frequency and/or urgency and/or urgency incontinence) that may occur in adult patients with overactive bladder syndrome.

4.2 Posology and method of administration


Adults (including elderly)

The recommended starting dose is 4 mg once daily. Based upon individual response, the dose may be increased to 8 mg once daily. The maximum daily dose is 8 mg.

Full treatment effect was observed between 2 and 8 weeks. Hence, it is recommended to re-evaluate the efficacy for the individual patient after 8 weeks of treatment.

In subjects with normal renal and hepatic function receiving concomitant administration of potent CYP3A4 inhibitors, the maximum daily dose of TOVIAZ should be 4 mg once daily (see section 4.5).

Special population

Renal and hepatic impairment

The following table provides the daily dosing recommendations for subjects with renal or hepatic impairment in the absence and presence of moderate and potent CYP3A4 inhibitors (see sections 4.3, 4.4, 4.5 and 5.2).


Moderate(3) or potent(4) CYP3A4 inhibitors




Renal impairment(1)


4→8 mg(2)

4 mg

Should be avoided


4→8 mg(2)

4 mg



4 mg

Should be avoided


Hepatic impairment


4→8 mg(2)

4 mg

Should be avoided


4 mg

Should be avoided


(1) Mild GFR = 50-80 ml/min; Moderate GFR = 30-50 ml/min; Severe GFR = <30 ml/min

(2) Cautious dose increase. See sections 4.4, 4.5 and 5.2

(3) Moderate CYP3A4 inhibitors. See section 4.5

(4) Potent CYP3A4 inhibitors. See sections 4.3, 4.4 and 4.5

TOVIAZ is contraindicated in subjects with severe hepatic impairment (see section 4.3).

Paediatric population

The safety and efficacy of TOVIAZ in children below 18 years of age have not yet been established. No data are available.

Method of administration

Tablets are to be taken once daily with liquid and swallowed whole. TOVIAZ can be administered with or without food.

4.3 Contraindications

• Hypersensitivity to the active substance or to peanut or soya or to any of the excipients listed in section 6.1

• Urinary retention

• Gastric retention

• Uncontrolled narrow angle glaucoma

• Myasthenia gravis

• Severe hepatic impairment (Child Pugh C)

• Concomitant use of potent CYP3A4 inhibitors in subjects with moderate to severe hepatic or renal impairment

• Severe ulcerative colitis

• Toxic megacolon.

4.4 Special warnings and precautions for use

TOVIAZ should be used with caution in patients with:

- Clinically significant bladder outflow obstruction at risk of urinary retention (e.g. clinically significant prostate enlargement due to benign prostatic hyperplasia, see section 4.3)

- Gastrointestinal obstructive disorders (e.g. pyloric stenosis)

- Gastro-oesophageal reflux and/or who are concurrently taking medicinal products (such as oral bisphosphonates) that can cause or exacerbate oesophagitis

- Decreased gastrointestinal motility

- Autonomic neuropathy

- Controlled narrow-angle glaucoma

Caution should be exercised when prescribing or uptitrating fesoterodine to patients in whom an increased exposure to the active metabolite (see section 5.1) is expected:

- Hepatic impairment (see sections 4.2, 4.3 and 5.2)

- Renal impairment (see section 4.2, 4.3 and 5.2)

- Concomitant administration of potent or moderate CYP3A4 inhibitors (see sections 4.2 and 4.5)

- Concomitant administration of a potent CYP2D6 inhibitor (see sections 4.5 and 5.2).

Dose increases

In patients with a combination of these factors, additional exposure increases are expected. Dose dependent antimuscarinic adverse reactions are likely to occur. In populations where the dose may be increased to 8 mg once daily, the dose increase should be preceded by an evaluation of the individual response and tolerability.

Organic causes must be excluded before any treatment with antimuscarinics is considered. Safety and efficacy have not yet been established in patients with a neurogenic cause for detrusor overactivity.

Other causes of frequent urination (treatment of heart failure or renal disease) should be assessed before treatment with fesoterodine. If urinary tract infection is present, an appropriate medical approach should be taken/antibacterial therapy should be started.


Angioedema has been reported with fesoterodine and has occurred after the first dose in some cases. If angioedema occurs, fesoterodine should be discontinued and appropriate therapy should be promptly provided.

Potent CYP3A4 inducers

The concomitant use of fesoterodine with a potent CYP3A4 inducer (i.e. carbamazepine, rifampicin, phenobarbital, phenytoin, St John's Wort) is not recommended (see section 4.5).

QT prolongation

TOVIAZ should be used with caution in patients with risk for QT-prolongation (e.g. hypokalaemia, bradycardia and concomitant administration of medicines known to prolong QT interval) and relevant pre-existing cardiac diseases (e.g. myocardial ischaemia, arrhythmia, congestive heart failure), (see section 4.8). This especially holds true when taking potent CYP3A4 inhibitors (see sections 4.2, 4.5 and 5.1).


TOVIAZ prolonged-release tablets contain lactose. Patients with rare hereditary problems of galactose intolerance, the Lapp lactase deficiency or glucose-galactose malabsorption should not take this medicinal product.

4.5 Interaction with other medicinal products and other forms of interaction

Pharmacological interactions

Caution should be exercised in coadministration of fesoterodine with other antimuscarinics and medicinal products with anticholinergic properties (e.g. amantadine, tri-cyclic antidepressants, certain neuroleptics ) as this may lead to more pronounced therapeutic- and side-effects (e.g. constipation, dry mouth, drowsiness, urinary retention).

Fesoterodine may reduce the effect of medicinal products that stimulate the motility of the gastro-intestinal tract, such as metoclopramide.

Pharmacokinetic interactions

In vitro data demonstrate that the active metabolite of fesoterodine does not inhibit CYP1A2, 2B6, 2C8, 2C9, 2C19, 2D6, 2E1, or 3A4, or induce CYP1A2, 2B6, 2C9, 2C19, or 3A4 at clinically relevant plasma concentrations. Thus fesoterodine is unlikely to alter the clearance of medicinal products that are metabolised by these enzymes.

CYP3A4 inhibitors

Potent CYP3A4 inhibitors

Following inhibition of CYP3A4 by co-administration of ketoconazole 200 mg twice daily, Cmax and AUC of the active metabolite of fesoterodine increased 2.0 and 2.3-fold in CYP2D6 extensive metabolisers and 2.1 and 2.5-fold in CYP2D6 poor metabolisers, respectively. Therefore, the maximum dose of fesoterodine should be restricted to 4 mg when used concomitantly with potent CYP3A4 inhibitors (e.g. atazanavir, clarithromycin, indinavir, itraconazole, ketoconazole, nefazodone, nelfinavir, ritonavir (and all ritonavir boosted PI-regimens), saquinavir and telithromycin (see sections 4.2 and 4.4)).

Moderate CYP3A4 inhibitors

Following blockade of CYP3A4 by coadministration of the moderate CYP3A4 inhibitor fluconazole 200 mg twice a day for 2 days, Cmax and AUC of the active metabolite of fesoterodine increased approximately 19% and 27%, respectively. No dosing adjustments are recommended in the presence of moderate CYP3A4 inhibitors (e.g., erythromycin, fluconazole, diltiazem, verapamil and grapefruit juice).

Weak CYP3A4 inhibitors

The effect of weak CYP3A4 inhibitors (e.g. cimetidine), was not examined; it is not expected to be in excess of the effect of moderate inhibitor.

CYP3A4 inducers

Following induction of CYP3A4 by coadministration of rifampicin 600 mg once a day, Cmax and AUC of the active metabolite of fesoterodine decreased by approximately 70% and 75%, respectively, after oral administration of fesoterodine 8 mg.

Induction of CYP3A4 may lead to subtherapeutic plasma levels. Concomitant use with CYP3A4 inducers (e.g. carbamazepine, rifampicin, phenobarbital, phenytoin, St John's Wort) is not recommended (see section 4.4).

CYP2D6 inhibitors

The interaction with CYP2D6 inhibitors was not tested clinically. Mean Cmax and AUC of the active metabolite are 1.7 and 2-fold higher, respectively, in CYP2D6 poor metabolisers as compared to extensive metabolisers. Co-administration of a potent CYP2D6 inhibitor may result in increased exposure and adverse events. A dose reduction to 4 mg may be needed (see section 4.4).

Oral contraceptives

Fesoterodine does not impair the suppression of ovulation by oral hormonal contraception. In the presence of fesoterodine there are no changes in the plasma concentrations of combined oral contraceptives containing ethinylestradiol and levonorgestrel.


A clinical study in healthy volunteers has shown that fesoterodine 8 mg once daily has no significant effect on the pharmacokinetics or the anticoagulant activity of a single dose of warfarin.

4.6 Fertility, pregnancy and lactation


There are no adequate data from the use of fesoterodine in pregnant women. Reproductive toxicity studies with fesoterodine in animals show minor embryotoxicity (see section 5.3). The potential risk for humans is unknown. TOVIAZ is not recommended during pregnancy.


It is not known whether fesoterodine is excreted into human milk; therefore, breast-feeding is not recommended during treatment with TOVIAZ.


No clinical trials have been conducted to assess the effect of fesoterodine on human fertility. Fesoterodine fumarate had no effect on male or female fertility in mice or any effects on reproductive function, or early embryonic development of the fetus in mice (for details see section 5.3). Women of child bearing potential should be made aware of the lack of fertility data, and TOVIAZ should only be given after consideration of individual risks and benefits.

4.7 Effects on ability to drive and use machines

TOVIAZ has minor influence on the ability to drive and use machines.

Caution should be exercised when driving or using machines due to possible occurrence of side effects such as blurred vision, dizziness, and somnolence (see section 4.8).

4.8 Undesirable effects

Summary of the safety profile

The safety of fesoterodine was evaluated in placebo-controlled clinical studies in a total of 2859 patients with overactive bladder, of which 780 received placebo.

Due to the pharmacological properties of fesoterodine, treatment may cause mild to moderate antimuscarinic effects like dry mouth, dry eye, dyspepsia and constipation. Urinary retention may occur uncommonly.

Dry mouth, the only very common adverse reactions, occurred with a frequency of 28.8% in the fesoterodine group compared to 8.5% in the placebo group. The majority of adverse reactions occurred during the first month of treatment with the exception of cases classified as urinary retention or post void residual urine greater than 200 ml, which could occur after long term treatment and was more common in male than female subjects.

Tabulated list of adverse reactions

The table below gives the frequency of treatment emergent adverse reactions from placebo-controlled clinical trials and from post-marketing experience. The adverse reactions are reported in this table with the following frequency convention: very common (≥1/10), common (≥1/100 to <1/10), uncommon (≥1/1,000 to <1/100), rare (≥1/10,000 to < 1/1,000).

Within each frequency grouping, adverse reactions are presented in order of decreasing seriousness.

System organ Class

Very common




Infections and infestations


Urinary tract infection


Psychiatric disorders




Confusional state

Nervous system disorders


Dizziness; Headache

Dysgeusia; Somnolence


Eye disorders


Dry eye

Blurred vision


Ear and labyrinth disorders




Cardiac disorders


Tachycardia; Palpitations


Respiratory, thoracic and mediastinal disorders


Dry throat

Pharyngolaryngeal pain; Cough; Nasal dryness


Gastrointestinal disorders

Dry mouth

Abdominal pain; Diarrhoea; Dyspepsia; Constipation; Nausea

Abdominal discomfort; Flatulence, Gastroesophageal reflux


Hepatobiliary disorders


ALT increased; GGT increased


Skin and subcutaneous tissue disorders


Rash; Dry skin; Pruritus

Angioedema; Urticaria

Renal and urinary disorders



Urinary retention (including feeling of residual urine; micturition disorder); Urinary hesitation


General disorders and administration site conditions




Description of selected adverse reactions

In clinical trials of fesoterodine, cases of markedly elevated liver enzymes were reported with the occurrence frequency no different from the placebo group. The relation to fesoterodine treatment is unclear.

Electrocardiograms were obtained from 782 patients treated with 4 mg, 785 treated with 8 mg, 222 treated with 12 mg fesoterodine and 780 with placebo. The heart rate corrected QT interval in fesoterodine treated patients did not differ from that seen in placebo treated patients. The incidence rates of QTc ≥500 ms post baseline or QTc increase of ≥60 ms is 1.9%, 1.3%, 1.4% and 1.5%, for fesoterodine 4 mg, 8 mg, 12 mg and placebo, respectively. The clinical relevance of these findings will depend on individual patient risk factors and susceptibilities present (see section 4.4).

Post-marketing cases of urinary retention requiring catheterisation have been described, generally within the first week of treatment with fesoterodine. They have mainly involved elderly (≥ 65 years) male patients with a history consistent with benign prostatic hyperplasia (see section 4.4).

4.9 Overdose

Overdose with antimuscarinics, including fesoterodine can result in severe anticholinergic effects. Treatment should be symptomatic and supportive. In the event of overdose, ECG monitoring is recommended; standard supportive measures for managing QT prolongation should be adopted. Fesoterodine has been safely administered in clinical studies at doses up to 28 mg/day.

In the event of fesoterodine overdose, treat with gastric lavage and give activated charcoal. Treat symptoms as follows:

− Severe central anticholinergic effects (e.g. hallucinations, severe excitation): treat with physostigmine

− Convulsions or pronounced excitation: treat with benzodiazepines

− Respiratory insufficiency: treat with artificial respiration

− Tachycardia: treat with beta-blockers

− Urinary retention: treat with catheterisation

− Mydriasis: treat with pilocarpine eye drops and/or place patient in dark room.

5. Pharmacological properties
5.1 Pharmacodynamic properties

Pharmacotherapeutic group: Urologicals, Urinary antispasmodics, ATC code: G04BD11.

Mechanism of action

Fesoterodine is a competitive, specific muscarinic receptor antagonist. It is rapidly and extensively hydrolysed by non-specific plasma esterases to the 5-hydroxymethyl derivative, its primary active metabolite, which is the main active pharmacological principle of fesoterodine.

Clinical efficacy and safety

The efficacy of fixed doses of fesoterodine 4 mg and 8 mg was evaluated in two Phase 3 randomised, double-blind, placebo-controlled, 12-week studies. Female (79%) and male (21%) patients with a mean age of 58 years (range 19-91 years) were included. A total of 33% of patients were ≥65 years of age and 11% were ≥75 years of age.

Fesoterodine treated patients had statistically significant mean reductions in the number of micturitions per 24 hours and in the number of urge incontinence episodes per 24 hours at the end of treatment compared to placebo. Likewise, the response rate (% of patients reporting that their condition has been “greatly improved” or “improved” using a 4-point Treatment Benefit Scale) was significantly greater with fesoterodine compared to placebo. Furthermore, fesoterodine improved the mean change in the voided volume per micturition, and the mean change in the number of continent days per week (see Table 1 below).

Table 1: Mean changes from Baseline to end of treatment for primary and selected secondary endpoints


Study 1

Study 2



Fesoterodine 4 mg

Fesoterodine 8 mg

Active comparator


Fesoterodine 4 mg

Fesoterodine 8 mg

Number of micturitions per 24 hours#

















Change from baseline















Responder rate (treatment response)#









Responder rate















Number of urge incontinence episodes per 24 hours

















Change from baseline















Number of continent days per week

















Change from baseline















Voided volume per micturition (ml)

















Change from baseline















# primary end points

Cardiac electrophysiology

The effect of fesoterodine 4 mg and 8 mg on the QT interval was thoroughly evaluated in a double-blind, randomised, placebo- and positive-controlled (moxifloxacin 400 mg) parallel group study with once-daily treatment over a period of 3 days in 261 male and female subjects aged 45 to 65 years. Change from baseline in QTc based on the Fridericia correction method did not show any differences between the active treatment and placebo group.

5.2 Pharmacokinetic properties


After oral administration, due to rapid and extensive hydrolysis by non-specific plasma esterases, fesoterodine was not detected in plasma.

Bioavailability of the active metabolite is 52%. After single or multiple-dose oral administration of fesoterodine in doses from 4 mg to 28 mg, plasma concentrations of the active metabolite are proportional to the dose. Maximum plasma levels are reached after approximately 5 hours. Therapeutic plasma levels are achieved after the first administration of fesoterodine. No accumulation occurs after multiple-dose administration.


Plasma protein binding of the active metabolite is low with approximately 50% bound to albumin and alpha-1-acid glycoprotein. The mean steady-state volume of distribution following intravenous infusion of the active metabolite is 169 l.


After oral administration, fesoterodine is rapidly and extensively hydrolysed to its active metabolite. The active metabolite is further metabolised in the liver to its carboxy, carboxy-N-desisopropyl, and N-desisopropyl metabolite with involvement of CYP2D6 and CYP3A4. None of these metabolites contribute significantly to the antimuscarinic activity of fesoterodine. Mean Cmax and AUC of the active metabolite are 1.7 and 2-fold higher, respectively, in CYP2D6 poor metabolisers as compared to extensive metabolisers.


Hepatic metabolism and renal excretion contribute significantly to the elimination of the active metabolite. After oral administration of fesoterodine, approximately 70% of the administered dose was recovered in urine as the active metabolite (16%), carboxy metabolite (34%), carboxy-N-desisopropyl metabolite (18%), or N-desisopropyl metabolite (1%), and a smaller amount (7%) was recovered in faeces. The terminal half-life of the active metabolite following oral administration is approximately 7 hours and is absorption rate-limited.

Age and gender

No dose adjustment is recommended in these subpopulations. The pharmacokinetics of fesoterodine are not significantly influenced by age and gender.

Paediatric population

The pharmacokinetics of fesoterodine have not been evaluated in paediatric patients.

Renal impairment

In patients with mild or moderate renal impairment (GFR 30 – 80 ml/min), Cmax and AUC of the active metabolite increased up to 1.5 and 1.8-fold, respectively, as compared to healthy subjects. In patients with severe renal impairment (GFR < 30 ml/min), Cmax and AUC are increased 2.0 and 2.3-fold, respectively.

Hepatic impairment

In patients with moderate hepatic impairment (Child Pugh B), Cmax and AUC of the active metabolite increased 1.4 and 2.1-fold, respectively, as compared to healthy subjects. Pharmacokinetics of fesoterodine in patients with severe hepatic impairment have not been studied.

5.3 Preclinical safety data

In non-clinical safety pharmacology, general toxicity, genotoxicity and carcinogenicity studies no clinically relevant effects have been observed, except those related to the pharmacological effect of the active substance.

Reproduction studies have shown minor embryotoxicity at doses close to maternally toxic ones (increased number of resorptions, pre-implantation and post-implantation losses).

Supratherapeutic concentrations of the active metabolite of fesoterodine, have been shown to inhibit K+ current in cloned human ether-à-go-go-related gene (hERG) channels and prolong action potential duration (70% and 90% repolarisation) in canine isolated Purkinje fibres. However in conscious dogs, the active metabolite had no effect on the QT interval and QTc interval at plasma exposures at least 33-fold higher than mean peak free plasma concentration in human subjects who are extensive metabolisers and 21-fold higher than measured in subjects who are poor CYP2D6 metabolisers after fesoterodine 8 mg once daily.

In a study of fertility and early embryonic development in mice, fesoterodine had no effect on male or female fertility at the highest dose evaluated, 45 mg/kg/day. Fesoterodine had no effect on reproductive function, or early embryonic development of the fetus at non-maternally toxic doses in mice, although a slight decrease in corpora lutea, implantation sites, and viable fetuses was noted at the maternally toxic dose of 45 mg/kg/day. The maternal No-Observed-Effect Level (NOEL) and the NOEL for effects on reproduction and early embryonic development were both 15 mg/kg/day. Based on AUC, the systemic exposure was 0.6 to 1.5 times higher in mice than in humans at the MRHD, whereas based on peak plasma concentrations, the exposure in mice was 5 to 9 times higher.

6. Pharmaceutical particulars
6.1 List of excipients

Tablet core


Lactose monohydrate

Microcrystalline cellulose


Glycerol dibehenate



Poly(vinyl alcohol)

Titanium dioxide (E171)

Macrogol (3350)


Soya lecithin

Indigo carmine aluminium lake (E132)

6.2 Incompatibilities

Not applicable.

6.3 Shelf life

2 years

6.4 Special precautions for storage

Do not store above 25°C.

Store in the original package in order to protect from moisture.

6.5 Nature and contents of container

TOVIAZ 4 mg tablets and TOVIAZ 8 mg tablets are packed in aluminium-aluminium blisters in cartons containing 7, 14, 28, 30, 56, 84, 98 or 100 tablets. In addition, TOVIAZ 4 mg and 8 mg tablets are also packed in HDPE bottles containing 30 or 90 tablets.

Not all pack sizes may be marketed.

6.6 Special precautions for disposal and other handling

Any unused medicinal product or waste material should be disposed of in accordance with local requirements.

7. Marketing authorisation holder

Pfizer Limited

Ramsgate Road


Kent CT13 9NJ

United Kingdom

8. Marketing authorisation number(s)


9. Date of first authorisation/renewal of the authorisation

Date of first authorisation: 20 April 2007

Date of latest renewal: 20 April 2012

10. Date of revision of the text


Detailed information on this medicinal product is available on the website of the European Medicines Agency http://www.ema.europa.eu

11. Legal category


Ref: TV 16_0

Company contact details

Pfizer Limited

Company image

Ramsgate Road, Sandwich, Kent, CT13 9NJ


+44 (0)1304 656 221


+44 (0)1304 616 161

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Active ingredients

fesoterodine fumarate

Legal categories

POM - Prescription Only Medicine

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