Zabcare

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Zabcare

Medically reviewed

Laura Arias

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Zabcare

Quick Facts

Property Description
Active ingredient Solifenacin succinate
Form Film-coated tablet, Oral suspension
Pharmacological class Anticholinergic, Muscarinic Receptor Antagonist
Common use Management of symptoms related to overactive bladder
Origin Synthetic small molecule

What Type of Medicine is Zabcare?

Zabcare is the trade designation for the active chemical substance solifenacin succinate, which is classified within the anticholinergic pharmacological group. It is specifically defined as a muscarinic receptor antagonist. Solifenacin is a synthetic compound, chemically manufactured as a derivative of quinuclidine and tetrahydroisoquinoline structures. This classification places it among the urologicals used for managing bladder function. This class of medication is utilized for its role in managing the functional issues of the bladder.

Composition and Form of Solifenacin

The formulation contains solifenacin succinate as its sole active ingredient, which identifies it as a single-ingredient product intended for focused symptomatic management. The medication is primarily presented as a film-coated tablet designed for oral administration. A distinguishing feature of the solifenacin active ingredient is its availability in an oral suspension form. This version is intended for a target audience including pediatric patients two years and older who require treatment for conditions such as neurogenic detrusor overactivity. This dual availability allows the therapeutic option to be delivered across a wider patient spectrum.

How Zabcare Generally Works to Provide Relief

The purpose of Zabcare is to alleviate disruptive symptoms related to bladder hyperactivity, such as excessive urgency. The substance works by acting as a muscle signal blocker within the bladder wall. By binding to muscarinic receptors on the detrusor muscle—the main muscle of the urinary bladder—the drug reduces the frequency and intensity of muscle contractions. This mechanism allows the bladder to relax and increase its capacity to store urine. This physiological effect addresses the core symptoms of frequent and intense urges, providing the general benefit of improving control over urinary urgency and helping to reduce episodes of accidental leakage.

Regulatory References

  1. Solifenacin: MedlinePlus Drug Information

What side effects are possible with Zabcare?

Possible Side Effects and Safety Information

Adverse Reactions

As an antimuscarinic agent, the safety profile of Zabcare is primarily characterized by anticholinergic effects. The most frequently reported adverse reactions, documented in clinical trials at an incidence greater than 4% and higher than placebo, are dry mouth and constipation (at both 5 mg and 10 mg doses). Other common reactions at the 10 mg dose include urinary tract infection and blurred vision.

System-Organ Class Most Common/Clinically Significant Reactions
Gastrointestinal Dry mouth, constipation, nausea, abdominal pain. Severe cases of fecal impaction, colonic obstruction, and intestinal obstruction have been reported.
Renal/Urinary Urinary tract infection, urinary retention (risk increases in those with bladder outflow obstruction).
Immune/Allergic Angioedema (swelling of face, lips, tongue, and/or larynx) and Anaphylactic reactions (reported rarely) are serious, potentially life-threatening risks.
Nervous System Headache, dizziness, somnolence (drowsiness), confusion, and hallucinations (antimuscarinic CNS effects).

Restrictions and Safety Monitoring

Contraindications prohibit the use of Zabcare in patients with urinary retention, gastric retention, uncontrolled narrow-angle glaucoma, or known hypersensitivity to the drug or its components.

Special Population Considerations: Patients with severe renal impairment ( CLcr < 30 mL/min) or moderate hepatic impairment (Child-Pugh B) should not exceed a 5 mg daily dose. The drug is not recommended for patients with severe hepatic impairment (Child-Pugh C).

Safety Notes: Patients should be monitored for signs of antimuscarinic Central Nervous System (CNS) effects, particularly upon initiation or dose increase. The drug may also cause reduced sweating, increasing the risk of heat stroke, and caution is advised in hot environments. Use with caution is also required in patients with clinically significant bladder outflow obstruction or decreased gastrointestinal motility.

Overdose and Emergency Response

Overdose with Solifenacin succinate is officially documented to result in severe manifestations of antimuscarinic effects. These presentations may include neurological disturbances such as mental status changes, decreased level of consciousness, tremors, and failure of heel-to-toe exam. Ocular signs like fixed and dilated pupils and blurred vision, as well as peripheral effects such as urinary retention and dry skin, are also documented. Overdose also carries the risk of severe cardiovascular complications, including tachycardia, the prolongation of the QT interval on ECG, and the potential for Torsade de Pointes. Life-threatening hypersensitivity reactions, such as Angioedema (upper airway swelling) and anaphylaxis, have also been reported and require immediate action. Regulatory documents mandate that patients seek immediate medical attention and contact a regional Poison Control Centre or hospital emergency department if overdose is suspected. Management must include symptomatic and supportive treatment, gastric lavage, and continuous ECG monitoring with specific attention to the risk of QT prolongation. In the event of upper airway swelling, immediate measures to ensure a patent airway must be provided. Regulatory labeling states that no specific antidote is known for Solifenacin overdose.

Therapeutic Uses of Zabcare

What Zabcare Treats: Main Uses and Benefits

Zabcare (Solifenacin succinate) is commonly used to provide symptomatic relief across conditions marked by increased physiological stress related to the involuntary hyperactivity of the bladder muscle; it supports patients during episodes of heightened discomfort. The medication is indicated for treating urinary incontinence and the overactive bladder syndrome.

This medication is used for managing symptom clusters that may become intense or disruptive in adults with Overactive Bladder (OAB) syndrome and in pediatric patients (aged two years and older) with Neurogenic Detrusor Overactivity (NDO). These indications are primarily focused on easing the symptoms of urinary urgency, urinary frequency, and urge urinary incontinence.

The therapeutic benefit supports patients during difficult episodes by easing distress, may assist with managing the frequency of voiding, and helps improve day-to-day comfort during symptomatic periods. The medication is relevant for easing symptoms that interfere with daily routine and is applied in contexts where additional symptomatic support is needed for these chronic conditions.

“This therapy is commonly used to help with managing the symptoms that interfere with daily functioning, aiming to support the patient in maintaining functional stability and reducing the symptom load associated with persistent bladder symptoms.”

Quick Fact Relief for Symptom
Common Use Managing urinary urgency and frequency
Key Benefit Helps improve day-to-day comfort
Specialized Use Relevant for Neurogenic Detrusor Overactivity in children

Regulatory References

  1. Solifenacin - LiverTox - NIH

Eligibility and Restrictions for Use

Zabcare (Solifenacin succinate) is defined by specific population rules established by regulatory authorities. The medicine is contraindicated and must not be used by individuals with certain severe pre-existing conditions. These absolute prohibitions include urinary retention, gastric retention (or toxic megacolon), uncontrolled narrow-angle glaucoma, and severe hepatic impairment (Child-Pugh C). It is also prohibited for patients with a known hypersensitivity to the drug or any of its components.

Age Group Eligibility Status
Adults (18+ years) Approved for use (tablet formulation).
Children (2+ years) Approved for the oral suspension only; the tablet formulation is not recommended as safety and efficacy are not established.
Children (< 2 years) Safety and efficacy have not been established.

Use is strictly restricted for patients with severe renal impairment or moderate hepatic impairment (Child-Pugh B); these populations must adhere to a specific maximum dose defined in the product labeling. Furthermore, Zabcare is not recommended for patients at high risk of QT prolongation or those with bladder outlet obstruction. During pregnancy, it should only be used if the potential benefit justifies the potential risk, and during lactation, official labeling requires a decision between discontinuing the drug or discontinuing nursing.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Zabcare may interact with other medicinal products due to two primary mechanisms: its effect on the Cytochrome P450 3A4 (CYP3A4) enzyme system and its inherent anticholinergic activity.

Clinically Significant Interactions

Product Category Interaction Mechanism Management
Potent CYP3A4 Inhibitors (e.g., ketoconazole, ritonavir, itraconazole) These medicines significantly inhibit the primary pathway for Zabcare's metabolism, leading to increased plasma concentrations of Zabcare. The maximum daily dose of Zabcare must be restricted when taken concomitantly with a potent CYP3A4 inhibitor.
Other Anticholinergic Agents (e.g., tricyclic antidepressants, H1-antihistamines) The combination results in additive anticholinergic effects, potentially increasing the risk of dry mouth, constipation, and urinary retention. Use of Zabcare with other anticholinergic drugs should be approached with caution.
Medicines for Gastrointestinal Motility (e.g., metoclopramide, cisapride) Zabcare can reduce the therapeutic effect of these prokinetic agents due to its action on gastrointestinal motility. The efficacy of the motility-stimulating agent may be diminished.
Medicines Known to Prolong the QT Interval (e.g., certain antiarrhythmics, antipsychotics) Additive effects may increase the risk of an electrical abnormality of the heart known as QTc prolongation. Caution is necessary in patients with existing risk factors for QTc prolongation.

Other Interaction Contexts

Zabcare has been observed to not cause clinically significant changes in the concentrations of certain drugs, including oral contraceptives and the anticoagulant warfarin. Due to the involvement of the CYP3A4 pathway, the product's maximum dose is also limited in patients with moderate liver impairment.

Mechanism of Action

Zabcare (Solifenacin succinate) operates through a focused pharmacological mechanism to modulate the signaling pathways responsible for bladder muscle contraction. This action is defined by a precise sequence from molecular target to resulting physiological change.


Targeted Blockade of Muscarinic M3 Receptors

This core mechanistic domain involves the drug's interaction with its primary biological target. Solifenacin functions as a competitive antagonist that exhibits high functional affinity for the M3 acetylcholine receptors ( mAChRs), which are predominant on the detrusor smooth muscle of the bladder. By occupying these receptors, the drug blocks the ability of the Acetylcholine ( ACh) neurotransmitter to initiate the contraction signal, interrupting the autonomic pathway signal that mediates detrusor contraction.


️ Suppression of the Intracellular Calcium Cascade

This domain addresses the downstream cellular event triggered by the receptor blockade. The interruption of the ACh-mediated signal prevents the activation of the Gq-protein cascade, which is biochemically responsible for mobilizing intracellular calcium ( Ca^2+). The resulting suppression of Ca^2+ mobilization within the muscle cells directly lowers the smooth muscle's excitability.


Physiological Consequence: Detrusor Muscle Relaxation

The sum of molecular blockade and cellular suppression translates into the primary systemic physiological effect. This mechanism leads to the relaxation of the detrusor muscle and a resultant decrease in the frequency and magnitude of detrusor contractions. This physiological change contributes directly to the increase in the functional volume and compliance (distensibility) of the bladder.

Dosage and Administration Information

The general principle for using Zabcare (Solifenacin succinate) is based on a standardized, once-daily oral administration protocol. The medication is provided as film-coated tablets for adults and an oral suspension for pediatric patients, with the therapy intended for long-term use for chronic symptom management.

Standardized Dosing and Intake

For most adult patients, the therapy initiates with an oral dose of 5 mg taken once daily. The protocol allows for an adjustment to the maximum recommended daily dose of 10 mg if the initial 5 mg dose is well tolerated. The tablets must be swallowed whole with liquid and may be administered with or without food.

Population-Specific Use Constraints

Standard guidelines specify procedural constraints on dosage for certain patient populations to structure appropriate use. The daily dose must not exceed 5 mg for adults diagnosed with severe renal impairment (creatinine clearance < 30 mL/min) or moderate hepatic impairment (Child-Pugh B). This 5 mg maximum dose is also required when the medicine is co-administered with a strong inhibitor of the CYP3A4 enzyme. In the pediatric population, the oral suspension must be administered accurately, with dosing strictly determined by the patient's body weight.

Recent Clinical Evidence

Research evidence / Overview of studies for Zabcare

The research evidence for this medicine has been reviewed by regulatory agencies and research describes what has been observed so far in clinical trials. Findings reflect group patterns, not personal outcomes, and research highlights what is known — and what remains uncertain.

Evidence for Use in Overactive Bladder (OAB) Syndrome in Adults

This section summarizes the core research relevant to the studied use of the medicine for OAB symptoms in adults, detailing the study designs, the primary outcomes measured in trials (like frequency and urgency), and the populations included in the main regulatory studies.

The primary evidence base includes multiple studies conducted during periods of increased symptom activity in adults. These were often Randomized Controlled Trials (RCTs), where researchers compared the medicine against an inactive substance (placebo) over periods typically lasting 12 weeks. The main outcomes studied were those related to physical discomfort and daily functioning, such as the recorded number of daily urinations, episodes of urgency, and instances of accidental leakage. While the primary evidence base is based on a consistent body of data for the initial 12 weeks of research, long-term effects are not fully established based on these core trials.

Evidence for Use in Neurogenic Detrusor Overactivity (NDO) in Pediatric Patients

This section outlines the specific clinical studies and physiological assessments used to evaluate the medicine’s use in pediatric patients (aged 2 years and older) with NDO. For the NDO indication, research explored the medicine in specific pediatric patients aged 2 years and older who have NDO due to underlying neurological conditions. The research design for this group differed from the adult OAB trials, focusing heavily on physiological measurements taken inside the bladder, known as urodynamic parameters. The main outcome monitored was the change in specific physiological parameters, such as the maximum volume the bladder could hold. Due to the specialized nature of this condition, evidence is limited and often based on smaller groups. Data for certain groups remain insufficient, as the medicine was not studied for use in children younger than two.

Long-Term Studies and Follow-up

Primary evidence from studies exploring symptom changes was based on short-term research, where follow-up durations were limited to the initial 12-week trials. Many adult participants who completed these initial OAB studies were then observed in long-term, open-label extension studies. In these settings, research describes patterns of measured changes over periods sometimes lasting up to one year. Similarly, for the pediatric NDO indication, open-label observational data was collected over a 52-week period. In both cases, there is limited information regarding long-term outcomes.

Key Studies & References

  1. Public Assessment Report (PAR) for Vesomni (Solifenacin/Tamsulosin) - Reference to Solifenacin OAB approval and pediatric status - CBG-MEB (Netherlands)
  2. Primary Care management of Overactive Bladder (OAB) - NICE-aligned guideline (Reference to specific patient populations and treatment setting)

Frequently Asked Questions (FAQ)

Common questions about Zabcare (FAQ)

Q: Does taking Zabcare at a specific time of day matter?

Official prescribing information states that Zabcare is intended as a once-daily oral administration. To maintain a consistent level of the medicine in the body, regulatory information advises taking the dose at around the same time every day, although no specific time (morning or night) is mandatory.


Q: Can Zabcare affect my mood or energy levels?

Regulatory documents indicate that Zabcare can affect the central nervous system (CNS). Reported adverse reactions, which may affect mood or energy, include confusion, hallucinations, and somnolence (drowsiness).


Q: Is it common to feel tired when starting Zabcare?

Somnolence, the medical term for drowsiness or tiredness, is a reported adverse reaction. Official information advises patients to monitor for these antimuscarinic CNS effects, particularly after beginning treatment or following an increase in the prescribed dose.


Q: Are there any specific foods or drinks that should be avoided while on Zabcare?

Official documents state that the tablet can be administered with or without food. However, patient materials often note that limiting consumption of alcohol or caffeinated beverages may be helpful if these are known to worsen the underlying urinary symptoms the medicine is treating.


Q: What is the typical shelf-life of Zabcare after purchase?

Regulatory guidance for the oral liquid suspension states that any unused portion must be discarded 28 days after first opening the bottle. The solid tablet formulation should generally be kept at a controlled room temperature, away from excessive moisture.


Q: Is it normal to have [non-specific side effect, e.g., mild headache] when beginning treatment?

Common side effects documented in clinical trials include dry mouth and constipation. Other reactions like headache or drowsiness can occur, particularly when treatment is initiated or the dose is adjusted. If side effects are mild, official information suggests these types of reactions may become less noticeable over the first few weeks.


Q: How is the use of Zabcare monitored by doctors?

Regulatory documents specify that physicians will monitor patients for signs of antimuscarinic Central Nervous System (CNS) adverse reactions, such as confusion and hallucinations. Monitoring is especially important during the initiation of treatment or following any dose change.


Q: Why are there warnings about pre-existing conditions and Zabcare?

Zabcare is an antimuscarinic agent that works by relaxing smooth muscles, including the bladder muscle. Official warnings exist because this mechanism can potentially worsen specific pre-existing conditions, such as bladder outlet obstruction, which could increase the risk of urinary retention.


Q: Does Zabcare affect driving ability?

Official warnings state that Zabcare may impair a person's reactions and vision. Official documentation contains a safety warning indicating that operating heavy machinery or driving is not recommended for patients until they know how the medication affects them, due to the risk of dizziness and somnolence (drowsiness).


Q: How quickly can I expect to notice any effects from Zabcare?

Clinical research indicates that Zabcare starts to have an effect within 3 to 8 hours of administration. However, clinical trials suggest the full effect in managing chronic symptoms may take up to 4 to 6 weeks to develop.


Q: What happens if I forget to take a dose of Zabcare?

Official prescribing information states that in the event of a missed dose of the tablet, the missed dose should be skipped entirely. The next dose should be taken at the normal time the following day, and patients should not take two doses at once to compensate.


Q: Are there any long-term safety concerns associated with Zabcare?

Clinical studies have described the medicine as being generally well tolerated for up to 52 weeks in some patient groups. In relation to the entire anticholinergic drug class, some population studies have suggested a possible association with an increased risk of cognitive issues, such as dementia, in older adults. This is a topic of ongoing discussion in regulatory circles.


Q: Can I take Zabcare if I also take over-the-counter pain relievers?

Regulatory documents on the active ingredient show potential interactions with certain pain relievers, such as Acetylsalicylic acid (aspirin), which could increase the risk of hypertension. Official information emphasizes the importance of informing a healthcare provider of all prescription and non-prescription medicines being taken.


Q: Does Zabcare interact with alcohol consumption?

Official product information contains a warning that avoiding or limiting alcohol consumption while on this medication is advisable. This is because alcohol can increase the risk of side effects like dizziness and fainting spells, and it may also counteract the therapeutic effect of the medicine on the urinary symptoms.


Q: Do older adults require special considerations when using Zabcare?

Yes, official documents recommend caution when Zabcare is used by older adults. Monitoring is important because effects like constipation, dry mouth, and confusion are more likely to occur and may require close attention.


Q: Is there a generic version of Zabcare available?

Zabcare is the trade name for the active ingredient, Solifenacin succinate. Generic versions of the medicine, which use this active ingredient, may be available, though availability and specific formulations can differ depending on the local market and regulatory approval.


Q: Where can I find official, regulatory information about Zabcare?

Authoritative and official information on medicines is provided by government agencies. This information can be found on public websites for agencies like the U.S. Food and Drug Administration (FDA) drug labels or the European Medicines Agency (EMA) summary of product characteristics (SmPC).


Q: How long after stopping Zabcare does it stay in the body?

The active ingredient in Zabcare has a relatively long elimination half-life, meaning it takes a long time for the body to clear the medicine. In healthy adults, the half-life ranges from 33 to 85 hours.


Q: Do lifestyle factors, like smoking, impact Zabcare's function?

Regulatory patient information advises patients to inform their healthcare professional if they smoke, as this may interact with the medicine. Official documentation also notes that caution is required to prevent overheating or dehydration, which may occur in hot weather or during intense exercise.


Q: Can Zabcare affect the results of lab tests (e.g., blood work)?

Clinical trial data reports that the use of the medicine has been associated with changes in certain tests. These changes include results for liver function tests (such as AST and ALT) and alterations in heart rhythm measurements on an Electrocardiogram (QT prolonged).


Q: What if I take too much Zabcare by accident?

Official safety guidance states that in the event of an overdose, it is necessary to contact a doctor or local emergency services immediately. Symptoms reported in overdose cases may include fast heartbeat, breathing problems, seizures, or hallucinations.


Q: What happens if I experience a rare side effect listed for Zabcare?

For serious, rare side effects such as Angioedema (swelling of the face, lips, or tongue), hives, or difficulty breathing, official patient safety information emphasizes that immediate emergency medical attention is required, including contacting local emergency services.


Q: Why is a prescription required for Zabcare?

The medicine is classified as a prescription-only medicine due to its pharmacological mechanism as a muscarinic receptor antagonist. This classification ensures that its use is overseen by a physician due to its complex safety profile, contraindications, and the need for patient monitoring.


Q: Can men and women use Zabcare in the same way?

Official clinical data for the adult tablet formulation indicates that similar safety and effectiveness were observed across different adult age groups. There is no general sex-specific dosing or administration difference mentioned in the prescribing information for adult men and women.

How should Zabcare be stored and disposed of?

How to Store and Dispose of Zabcare

Official regulatory guidelines define specific requirements to maintain the drug's quality and ensure public safety.


Storage Requirements

Condition Requirement
Temperature Store at controlled room temperature in a closed container.
Protection Keep the medicine away from freezing, moisture, and excessive heat or light.
Stability For the oral liquid, discard any unused portion 28 days after first opening the bottle.
Safety Always keep this medicine out of the reach of children.

Disposal Instructions

Do not flush Zabcare down a sink or toilet unless specifically instructed by official labeling. Dispose of expired or unused medicine through an authorized drug take-back program or a medication collection site. If a take-back program is unavailable, mix the medicine with an unappealing substance, seal it in a plastic bag, and place it in the household trash. Remove all personal information from the label before disposal.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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