Urso Plus

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Urso Plus

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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 Urso Plus

Property Description
Active ingredient Ursodiol (Ursodeoxycholic Acid), Silibinin
Form Oral Solid Dosage (Tablet/Capsule)
Pharmacological class Hepatoprotective Agent, Gallstone Dissolution Agent
Common use Supporting Liver and Biliary Function
Origin Derived (Ursodiol), Natural (Silibinin)

Defining Urso Plus: Identity and Pharmacological Class

Urso Plus is a prescription-only combination product classified as both a hepatoprotective agent and a gallstone dissolution agent. This medicine, typically administered as an oral solid dosage form, is intended for ingestion to manage conditions of the liver and biliary system. The primary component, Ursodiol, belongs to the class of bile acid preparations which are designed to modulate bile composition.

The inclusion of Silibinin elevates its function, adding cellular protection, a mechanism recognized for its ability to support the liver's protective barrier against injury. This characterizes the medicine's role in defending the health of liver cells. The dual-action approach distinguishes it from single-agent formulations, positioning it as a comprehensive option for patients needing both bile composition adjustment and hepatocyte support.


Composition and Origin: What is Urso Plus Made Of?

The formulation’s core lies in its two distinct active ingredients: Ursodiol (Ursodeoxycholic Acid, UDCA) and Silibinin. Ursodiol is a secondary bile acid that occurs naturally in small concentrations, while Silibinin is a polyphenolic flavonoid extracted from the milk thistle plant.

These two chemically distinct compounds are purposely combined: Ursodiol works in the fluid environment to alter the bile acid pool, while the plant-derived Silibinin acts on the cellular level as an antioxidant and membrane stabilizer. The therapeutic approach of combining these agents utilizes their complementary effects in managing liver function.


General Purpose: What Does Urso Plus Help to Do?

The general purpose of Urso Plus is to provide comprehensive support for the function and health of the liver and gallbladder. The Ursodiol component acts to reduce the saturation of bile with cholesterol, which is key to supporting conditions related to cholesterol build-up. A typical neutral use scenario for its class is its role in managing patients with impaired bile flow.

Concurrently, the presence of Silibinin contributes direct cytoprotection to liver cells, supporting their integrity against chemical stressors. This integrated approach maintains the stability of the hepatobiliary system and assists the liver's overall roles in metabolism and detoxification, making it a distinctive choice within its therapeutic class.

Regulatory References

  1. Milk Thistle - LiverTox - NIH

What side effects are possible with Urso Plus?

Possible side effects and safety information

The official documentation of safety and adverse reactions for this medicine primarily reflects the established profile of its main component, Ursodiol, with supplementary data from Silibinin. Regulatory documents classify potential effects by both frequency and the physiological system affected.

Adverse reactions are most frequently reported within the Gastrointestinal Disorders system. Diarrhoea and loose stools are classified as Common in official regulatory documents, meaning they may affect up to 10 out of every 100 users. Other gastrointestinal events include abdominal pain, nausea, vomiting, and dyspepsia.

Events affecting the Skin and Subcutaneous Tissue are also noted, which can include pruritus (itching) and urticaria. Urticaria is typically classified as Uncommon.

Serious Adverse Reactions and Safety Considerations

Specific rare events are documented as clinically significant. Within the Hepatobiliary Disorders system, the calcification of gallstones is classified as a Very Rare event, along with the occurrence of severe right upper quadrant abdominal pain.

Certain patient-specific safety considerations are detailed in prescribing information. For individuals with Primary Biliary Cholangitis (PBC), an existing symptom like pruritus may temporarily worsen at the beginning of treatment. Furthermore, the medicine is subject to constraints, including against use in cases of decompensated hepatic cirrhosis, acute inflammation of the biliary tract, or when calcified cholesterol gallstones are present.

Overdose and Emergency Response

Overdose and When to Seek Help

This section details the officially documented overdose information for Urso Plus (Ursodiol/Silibinin) based on government regulatory sources.


Documented Overdose Manifestations

The most likely manifestations of an overdose are related to the effects of excess unabsorbed bile acid in the gastrointestinal tract. Regulatory documents state that an overdose primarily presents as:

  • Diarrhoea
  • Pasty stools
  • Abdominal pain

Required Emergency Actions

Immediate medical attention must be sought if an overdose is suspected or confirmed. This involves contacting a Poison Control Center or Emergency Services immediately.

No specific antidote is available for Urso Plus. Management focuses on supportive measures and observation.

Supportive Measures and Monitoring

Management procedures described in regulatory sources include:

  • Discontinuation of therapy or dose reduction if severe or persistent diarrhoea occurs.
  • Symptomatic treatment to restore fluid and electrolyte balance.
  • Liver function monitoring is required, especially in patients with pre-existing hepatic conditions.

Population-Specific Risk

Regulatory information notes that severe overdose symptoms are generally unlikely because the absorption of Ursodiol decreases as the dose increases. However, a specific, rare, but serious risk is documented in patients with advanced primary biliary cholangitis ( PBC): the potential for decompensation of hepatic cirrhosis. This outcome requires immediate intervention and is often reversible upon cessation of the drug.

Therapeutic Uses of Urso Plus

What Urso Plus treats: main uses and benefits

The primary therapeutic purpose of Urso Plus is focused on the management of specific biliary and hepatic conditions. This medicine is utilized across two main therapeutic domains: the non-surgical management of small, non-calcified cholesterol gallstones and supportive therapy for conditions involving inflammatory or irritative processes, such as Primary Biliary Cholangitis (PBC) and Non-Alcoholic Fatty Liver Disease (NAFLD).

In clinical settings where supportive symptom management is appropriate, the medication helps address symptom clusters that may become intense or disruptive. The key indications are cholesterol gallstone dissolution and gallstone prevention during high-risk scenarios, such as rapid weight loss. Additionally, it is used for managing the course of chronic cholestatic liver conditions. This support is relevant for easing symptoms linked to organ-specific functional stress and offers symptomatic relief during phases of chronic stress.

“This medicine is commonly used to help with situations involving persistent liver stress and is relevant when supportive symptom management is appropriate for the condition.”

Quick Fact: Relief for Elevated Liver Enzymes

The medication helps reduce heightened physiological activity, often observed as elevated liver enzymes (ALT, AST), providing support that helps ease the overall symptom burden associated with chronic hepatic dysfunction.

Eligibility and Restrictions for Use

The eligibility profile for Urso Plus is strictly based on official regulatory documents, defining who is allowed, restricted, or prohibited from using the medicine. The population rules are driven by the status of the patient’s biliary system, age, and physiological condition.

Eligibility Scope
Populations for whom use is allowed (as stated in label): Adults (for PBC and cholesterol gallstones); Children/Adolescents (Ages 6–18) for specific Cystic Fibrosis-related hepatobiliary disorders (regional indication).
Populations for whom use is not recommended (if applicable): Children under 6 years; Patients undergoing lactation/breastfeeding.
Populations for whom use is contraindicated: Patients with complete biliary obstruction; Hypersensitivity to bile acids; Non-functioning gallbladder; Acute inflammation of the biliary tract; Calcified or pigment gallstones.
Condition-specific eligibility rules: Use is restricted in patients with advanced chronic liver disease characterized by decompensation (e.g., ascites).
Pregnancy and lactation eligibility status (if explicitly documented): Use is prohibited during pregnancy (stricter SmPC wording) and not recommended during lactation.
Eligibility-related restrictions: Women of childbearing potential must use reliable non-hormonal or low-estrogen contraception.

Official Eligibility Statements

  • The medicine is contraindicated in patients with a complete obstruction of the bile duct or a non-functioning gallbladder.
  • The use is generally not established for general purposes in children under 6 years.
  • Eligibility for women of childbearing potential requires the concurrent use of a non-hormonal or low-estrogen contraceptive method.

Connection to the overall eligibility profile

Regulatory documents strictly define patient suitability primarily based on the functional integrity of the patient's biliary system and the composition of gallstones. Further eligibility constraints are established through age limitations and explicit prohibitions during physiological states like pregnancy, as documented in the official regulatory labels.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory documents detail specific constraints regarding the co-administration of Urso Plus with certain medications and substance classes. These interactions may impact the effectiveness of Urso Plus or require monitoring and adjustment of the co-administered drug.


Documented Pharmacokinetic Interactions

Interacting Product Category Specific Examples Interaction Basis & Implication
Bile Acid Sequestering Agents Cholestyramine, Colestipol These agents can bind to Urso Plus in the intestine, reducing its absorption and potentially interfering with its action. A separation of dosing time is generally required.
Aluminum-based Antacids Antacids containing aluminum hydroxide Similar to sequestering agents, these antacids can reduce the absorption and efficacy of Urso Plus.

Documented Pharmacodynamic and Efficacy Interactions

Interacting Product Category Specific Examples Interaction Basis & Implication
Drugs Affecting Lipid Metabolism Clofibrate (and related lipid-lowering drugs) These medicines may increase the amount of cholesterol secreted into bile, which can counteract the intended therapeutic effect of Urso Plus.
Estrogens and Oral Contraceptives These substances can similarly increase biliary cholesterol saturation, potentially reducing the effectiveness of Urso Plus in dissolving gallstones.

Interactions Requiring Monitoring

Urso Plus may affect the body’s absorption and metabolism of certain medications, potentially increasing or altering their levels in the blood. When co-administered, close patient monitoring and potential dose adjustment of the interacting medicine may be required. Medicines identified in regulatory documents include Cyclosporine, Dapsone, and Nitrendipine.

Mechanism of Action

The mechanism of Urso Plus is governed by the synergistic actions of Ursodeoxycholic Acid (UDCA) and Silibinin across three biological domains. UDCA initiates competitive displacement of toxic hydrophobic bile acids from the circulating bile acid pool, thereby mitigating cellular damage. Concurrently, UDCA acts as a choleretic agent by modulating and upregulating the activity of transport proteins on the hepatocyte membrane, such as the Chloride-Bicarbonate Anion Exchanger 2 ( AE2), which enhances bile secretion and flow. This action modifies biliary lipid composition, influencing the physical state of cholesterol. The second component, Silibinin, provides direct defense by scavenging Reactive Oxygen Species (ROS) and suppressing inflammatory responses via inhibition of the Nuclear Factor-kappa B ( NF-kappa B) transcription factor. Furthermore, Silibinin influences pathways of tissue repair through its link to RNA Polymerase I activity. This activation accelerates ribosomal RNA and protein synthesis, thereby modulating the liver’s intrinsic pathway for cellular replacement.

Dosage and Administration Information

Official Administration Guidelines for Urso Plus

The administration of Urso Plus is based on the protocols established for its main component, Ursodiol. The medicine is for oral intake as an oral solid dosage form (tablet or capsule).

Dosing and Schedule

Dosages are individualized and calculated based on a patient's body weight. For instance, the regimen for Primary Biliary Cholangitis (PBC) is typically defined as 13-15 mg/kg/day (milligrams per kilogram of body weight per day), while Gallstone Dissolution regimens use a range of 8-10 mg/kg/day. The total daily dose is divided and administered in two to four portions throughout the day to maintain consistent levels of the active component.

Administration Conditions

The instructions for use indicate that the medicine is taken with food to support absorption and patient tolerance. Scored tablets (e.g., 500 mg strength) are permitted to be broken in halves to achieve the required weight-adjusted dose, but the segments must be swallowed and are not to be chewed.

Specific Use Rules

Treatment for PBC is typically a long-term or chronic regimen. Dosage for older adults is selected with caution, and safety and effectiveness are not established for use in pediatric patients for the primary adult indications. If a dose is missed, it is taken when remembered, unless it is near the time for the next scheduled dose, in which case the missed dose is skipped to prevent double dosing.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Urso Plus


Research Evidence for Gallstone Dissolution and Prevention

Research was studied for its use in conditions related to cholesterol gallstones. The evidence base for this context includes Randomized Controlled Trials (RCTs) and long-term observational studies. The primary research focus was evaluated in adults who had small, non-calcified gallstones, with outcomes measured by radiological status (e.g., outcomes monitoring gallstone status).

Studies report how symptoms evolved in the observed populations, describing patterns related to radiological changes over defined time intervals. The research examined changes measured in the cholesterol saturation of bile. The core evidence for this purpose was observed in studies of a component (Ursodiol) within the medication, which was studied for its ability to alter the bile composition. However, the evidence is limited regarding the specific comparison of the combined Urso Plus product against Ursodiol monotherapy alone.


Research Evidence for Primary Biliary Cholangitis (PBC)

Urso Plus was evaluated in the context of Primary Biliary Cholangitis (PBC), a condition where outcomes related to systemic or functional imbalance were observed in the studies. The research structure includes long-duration RCTs and comprehensive meta-analyses that studies explored long-term outcomes. These studies focused on adults with confirmed PBC and monitored several biochemical marker shifts, such as key liver enzyme levels (e.g., ALP, total bilirubin).

Some trials described data showing patterns related to marker shifts and long-up outcomes measured, such as survival without transplantation. The evidence quality for outcomes related to systemic or functional imbalance in PBC was observed in studies of the medicine’s main component. Despite this, data for certain groups remain insufficient when looking specifically at the combined Ursodiol/Silibinin formulation, and findings were mixed regarding changes in patient-reported outcomes describing perceived discomfort.


Gaps and Uncertainty in the Research Evidence

The evidence base contains important research gaps. Comparative evidence is lacking for the direct advantage of the Urso Plus combination over the monotherapy in key clinical endpoints. Furthermore, long-term effects are not fully established for the supportive contexts of the medicine. The evidence quality varies across studies, especially in supportive contexts like Non-Alcoholic Fatty Liver Disease (NAFLD), where the sample sizes were modest and the results apply only to the populations studied.

Key Studies & References Ursodiol (Ursodeoxycholic Acid): Clinical and Research Information on Drug-Induced Liver Injury (LiverTox Monograph)

Frequently Asked Questions (FAQ)

Common questions about Urso Plus (FAQ)

Q: What is Urso Plus used for according to official descriptions?

Official documents state that Urso Plus is approved for treating two main conditions. These applications include the management of Primary Biliary Cholangitis (PBC), which is a chronic liver disease, and promoting the dissolution of small, non-calcified cholesterol gallstones. The official labeling defines these specific therapeutic applications.

Q: What is the typical recommended duration of treatment with Urso Plus, as documented in official sources?

The required duration of treatment varies based on the condition being addressed. For the dissolution of cholesterol gallstones, official sources usually describe a long course lasting typically between 4 to 24 months. Official guidelines describe treatment typically continuing for three months after the gallstones are no longer visible.

Q: Does the time of day a person takes Urso Plus affect its intended action?

Regulatory information describes the total daily dose as typically divided and administered with food in two to four portions across the day. This timing structure supports optimal absorption and is intended to maintain consistent levels of the active component in the body.

Q: Is feeling mild nausea a frequent experience when first beginning Urso Plus?

Official safety data classifies nausea as an uncommon side effect of this medicine. This means that, based on clinical reports, it may occur in approximately 1 out of every 100 people who use the medicine.

Q: What is the strength of the clinical research supporting the primary use of Urso Plus?

Studies and official information indicate that the primary uses of the medicine are supported by adequate and well-controlled clinical research. This includes evidence drawn from Randomized Controlled Trials (RCTs). These types of studies are recognized as providing substantial evidence for its therapeutic role.

Q: Is it typically safe to use Urso Plus with a standard, over-the-counter multivitamin product?

Official drug information does not detail specific warnings for common multivitamin products. However, official documents warn that substances like aluminum-based antacids or cholesterol binders may reduce the medicine's absorption and should be administered separately.

Q: Do the therapeutic effects of Urso Plus persist after a patient discontinues treatment?

The medicine's primary therapeutic actions, such as changing bile composition, are linked to the continued presence of the active components in the body. Therefore, these therapeutic effects are not generally expected to persist indefinitely once a patient discontinues taking the treatment.

Q: Why is Urso Plus often mentioned in discussions related to lifestyle changes?

The medicine is often discussed alongside lifestyle changes because it is used for conditions intrinsically linked to patient health factors. Official drug summaries indicate that the medicine's role is related to dietary cholesterol management and weight status, which are often addressed through lifestyle adjustments.

Q: Does the official safety data mention any risk of physical dependence on Urso Plus?

Official prescribing information confirms that there are no warnings or statements regarding any potential for drug abuse or physical dependence associated with this medicine. This information is documented as part of the medicine's regulatory safety profile.

Q: What does available research suggest about the effects of discontinuing Urso Plus suddenly?

While the specific effects of suddenly stopping treatment are not always detailed, official warnings note that abrupt discontinuation may be advised against. This is particularly noted for patients with Primary Biliary Cholangitis (PBC) due to the nature of this underlying chronic liver disease.

Q: What are the non-drug components, or 'inactive ingredients,' in Urso Plus formulations?

Yes, official regulatory documents provide a complete listing of all components in the formulation. The inactive ingredients, which include substances like coloring agents, binders, and fillers, are explicitly detailed in the product's full description section.

How should Urso Plus be stored and disposed of?

Official Storage Conditions

Urso Plus must be stored at Controlled Room Temperature, specifically between 20 C and 25 C (68 F to 77 F). The medicine must be protected from light, excess heat, and moisture, and must be kept from freezing. Storage is required in the original container, which must be kept tightly closed and be light-resistant.

Stability and Child Safety

If the scored tablet is broken in half, the resulting segments must be used within 28 days to ensure stability. The medication must always be stored out of the sight and reach of children.

Disposal Requirements

Unused or expired Urso Plus should be disposed of through a drug take-back program. If this is unavailable, the medicine should be mixed with an undesirable substance, placed in a sealed bag, and disposed of in the household trash. It must not be flushed down the toilet or poured into a drain.

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

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