Ursactive

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Ursactive

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Medically reviewed

Marina Burgos

Last updated on 10/01/2026

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 Ursactive

Property Description
Active ingredient Ursodeoxycholic Acid (UDCA)
Form Oral Capsule, Oral Tablet, Oral Suspension
Pharmacological class Cholelitholytic Agent, Hepatoprotective Agent
General purpose Supports biliary health by modifying bile composition
Origin Naturally occurring compound, synthetically manufactured

What is Ursactive and What Type of Medicine is It?

Ursactive is a pharmaceutical product defined by its sole active component, Ursodeoxycholic Acid (UDCA), which is classified as a Secondary Bile Acid and belongs to the pharmacological group of Cholelitholytic Agents and Hepatoprotective Agents.

The compound is a highly hydrophilic (water-soluble) bile salt. While UDCA is a minor, naturally occurring component of human bile, the medicine is synthetically manufactured to ensure standardized purity and concentration. This synthetic production and subsequent pharmaceutical use is recognized for its therapeutic applications in bile-related conditions. UDCA decreases cholesterol secretion into the bile, which serves to normalize the ratio of components within the body's bile pool.

Composition, Form, and General Therapeutic Purpose

Ursodeoxycholic Acid is a single-ingredient product formulated for oral administration, typically available as an Oral Capsule, Oral Tablet, or sometimes an Oral Suspension.

The general therapeutic purpose of this medicine is to support the overall health of the biliary system and the liver by changing the internal environment of the bile. The introduction of UDCA helps to reduce the cholesterol saturation of the bile, which is the necessary physiological prerequisite for facilitating the dissolution of non-calcified cholesterol stones. A primary physiological effect of UDCA is the reduction of the cytotoxicity of other bile acids and the enhancement of bile flow. This supports its role in protecting the liver and assisting the movement of bile through the system.

Regulatory References

  1. U.S. National Library of Medicine
  2. National Center for Biotechnology Information

What side effects are possible with Ursactive ?

Possible Side Effects and Safety Information

The safety profile of Ursodeoxycholic Acid (Ursactive) is documented based on frequency classifications and system-organ effects as established by government regulatory authorities.


Classification of Adverse Reactions

The most frequently reported effects are generally related to the gastrointestinal system.

Classification System-Organ Class Example Adverse Reactions (from regulatory labels)
Common (≥ 1/100 to < 1/10) Gastrointestinal Disorders Soft stools, Diarrhea
Uncommon (≥ 1/1,000 to < 1/100) Hepatobiliary Disorders, GI Disorders Calcification of gallstones, Abdominal pain, Nausea
Very Rare (< 1/10,000) Skin, Hepatobiliary Urticaria, Transient increase in liver enzyme values

Serious Adverse Reactions and Safety Constraints

Official regulatory documents define certain risks and conditions under which the medicine should not be used. The calcification of gallstones is documented as a serious reaction observed during dissolution therapy, which renders the stones non-treatable by Ursodeoxycholic Acid.

Diarrhea may sometimes be dose-dependent and can be more prominent during the initiation of treatment or when the dose is increased, as noted in official prescribing information.

Use is formally restricted (contraindicated) in patients with specific acute biliary conditions, including acute cholecystitis, acute cholangitis, or a complete obstruction of the biliary tract. It is also generally not intended for use in individuals with severe hepatic impairment or a non-functioning gallbladder.

Overdose and Emergency Response

Overdose and When to Seek Help

The official regulatory profile for an overdose of Ursodeoxycholic Acid (Ursactive) is specific, centering on acute gastrointestinal effects. The most frequently documented clinical manifestations of overdose are severe diarrhea and abdominal pain.

Overdosage is generally classified as potentially self-limiting; however, the primary serious outcome that may arise from persistent, severe diarrhea is dehydration and subsequent disruption of electrolyte balance. These systemic complications dictate the required emergency response.


Official Regulatory Actions

Response Requirement Official Regulatory Statement
Immediate Action Contact a healthcare professional, hospital emergency department, or regional poison control center immediately if an overdose is confirmed or suspected, even if symptoms are not present.
Antidote No specific antidote is known for Ursodeoxycholic Acid overdose.
Management Treatment is exclusively symptomatic and supportive, focused on managing the gastrointestinal effects and ensuring the restoration of fluid and electrolyte balance if severe diarrhea occurs.

All regulatory authorities mandate that individuals seek emergency medical treatment immediately upon any suspicion of an overdose.

Therapeutic Uses of Ursactive

Main Uses and Benefits of Ursactive

Ursactive is a medication containing ursodeoxycholic acid, a naturally occurring bile acid found in small amounts in human bile. It is primarily used to manage specific conditions affecting the liver and gallbladder by improving bile flow and protecting liver cells.

Dissolution of Cholesterol Gallstones

One of the primary applications of Ursactive is the dissolution of cholesterol-rich gallstones. It works by reducing the amount of cholesterol secreted into the bile and gradually dispersing the cholesterol from existing stones. This treatment is typically reserved for cases where:

  • The gallstones are not visible on a standard X-ray (radiolucent).
  • The stones are relatively small, usually less than 15mm in diameter.
  • The gallbladder is still functioning correctly despite the presence of stones.

Primary Biliary Cholangitis (PBC)

Ursactive is used in the management of primary biliary cholangitis, a chronic liver disease where the bile ducts in the liver are slowly destroyed. By supplementing the body's bile acid pool, the medication helps to:

  • Protect liver cells from the toxic effects of more aggressive bile acids.
  • Improve liver function markers.
  • Delay the progression of liver scarring (fibrosis) or cirrhosis.

Pediatric Liver Disorders

In pediatric medicine, Ursactive may be utilized to treat hepatobiliary disorders associated with cystic fibrosis. It helps improve bile flow and supports liver health in children aged 6 to 18 years who experience liver complications related to this genetic condition.

Mechanism of Action and Benefits

The benefits of Ursactive stem from its ability to modify the composition of bile. By replacing toxic, hydrophobic bile acids with its own cytoprotective properties, it reduces inflammation and prevents further damage to the biliary epithelium. This shift in bile chemistry not only assists in dissolving stones but also serves as a long-term therapeutic approach for maintaining liver stability in chronic conditions.

Regulatory References

  1. NIH MedlinePlus overview of Ursodiol

Eligibility and Restrictions for Use

Populations Who Must Not Use Ursactive (Contraindications)

The medicine is contraindicated for patients with a completely blocked biliary tract or acute inflammation of the gallbladder or bile ducts. It must not be used if the gallbladder is non-functioning or if the patient has calcified gallstones (radio-opaque). Use is also prohibited in patients with a known hypersensitivity to the active ingredient.


Eligibility and Restrictions

Adults are eligible for the treatment of Primary Biliary Cholangitis (PBC) and for the dissolution of radiolucent (non-calcified) cholesterol gallstones. Pediatric use is not established for general purposes, but the medicine is approved for children, typically 6 to 18 years, with hepatobiliary disorders associated with cystic fibrosis.

Conditional use is necessary for specific conditions. Caution is required in patients with signs of decompensated liver cirrhosis and in those with conditions like Crohn's disease that may lead to intestinal blockage. Pregnancy is a restricted state; use is not recommended unless judged clearly necessary, and women of childbearing potential must use reliable contraception.

What should I know about interactions with other medicines?

Ursactive Interactions with other medicines and products

Ursodeoxycholic Acid (UDCA), the active component of Ursactive, has officially documented interaction patterns that primarily involve interference with its own absorption or the alteration of co-administered drug levels.


Interactions Counteracting Efficacy and Absorption

Certain combinations are documented to counteract the therapeutic purpose of UDCA. Oestrogenic hormones, such as those in oral contraceptives, and lipid-lowering agents like Clofibrate are known to increase cholesterol saturation in bile, which officially opposes UDCA's intended effect of dissolving cholesterol gallstones. Co-administration of these agents is therefore prohibited for that indication.

A major interaction domain involves substances that bind UDCA in the gastrointestinal tract, thereby reducing its systemic exposure and efficacy. This includes bile acid sequestering agents (e.g., Cholestyramine, Colestipol) and aluminum-based antacids. Due to this physicochemical binding, these agents must be administered at least two hours before or after Ursactive to ensure proper absorption.

Altered Exposure of Other Medicines

UDCA is documented to alter the absorption of other medicines. Co-administration increases the intestinal absorption of Ciclosporin, which may necessitate careful monitoring of Ciclosporin concentrations. Conversely, UDCA can reduce the systemic exposure and therapeutic effect of agents such as the calcium antagonist Nitrendipine and, in some cases, the antibiotic Ciprofloxacin and the drug Dapsone. Regarding metabolic pathways, controlled clinical trials have established that UDCA has no relevant inductive effect on the CYP450 3A enzymes.

Mechanism of Action

Ursactive's action involves a multi-layered mechanism targeting the contents of the bile and the integrity of liver cells.

Molecular Modification of Bile Composition

This mechanism focuses on the physicochemical modification of bile fluid. Ursodeoxycholic Acid ( UDCA) incorporates itself into the enterohepatic circulation, actively reducing the amount of cholesterol secreted from the liver and simultaneously replacing toxic, hydrophobic bile acids. This substitution lowers the cholesterol saturation index of the bile, establishing the physiological condition where cholesterol structures can be gradually solubilized.

Direct Hepatobiliary Cytoprotection

The drug exerts a direct stabilizing effect by integrating into the apical cell membranes of hepatocytes and cholangiocytes. This membrane stabilization mechanism acts against the detergent-like action of toxic, endogenous bile salts, which influences the rate of apoptosis (programmed cell death) and cellular stability. This action enhances the stability of the cellular components within the liver and bile ducts.

Regulation of Bile Flow and Homeostasis

Ursodeoxycholic Acid modulates key regulatory pathways, including nuclear receptors like FXR, to control the synthesis and transport of bile acids. This leads to an increase in a unique bicarbonate-rich bile flow (choleresis), which increases the flow of fluid through the bile ducts. This regulatory action contributes to the dynamics and movement of bile within the biliary system.

Dosage and Administration Information

How Ursactive is Used: Official Administration Guidelines

Ursactive, containing Ursodeoxycholic Acid (UDCA), is administered through a specific, structured oral regimen to ensure consistent therapeutic concentrations in the bile. The medication is available as an oral capsule, oral tablet, or an oral suspension.


Official Dosing and Frequency

Treatment is typically continuous and often weight-based, with the total daily dose usually divided into two to four administrations throughout the day.

Indication Typical Dose Range Frequency Pattern
Primary Biliary Cholangitis (PBC) 13–15 mg/kg per day Divided daily doses
Gallstone Dissolution 8–10 mg/kg per day Divided, with a larger portion often taken in the evening

For PBC, therapy is generally long-term, often continued indefinitely. For gallstone dissolution, therapy can be prolonged, lasting up to two years, and is maintained for approximately three months after stones are confirmed to be dissolved. Dosing for pediatric patients with specific hepatic disorders is also weight-related, starting near 20 mg/kg per day.


Administration Requirements

The medication should be taken with food to maximize absorption. Tablets and capsules must be swallowed whole with water; however, scored tablets may be broken to assist in precise dosing. If a dose is missed, it should be taken as soon as it is remembered, unless it is nearly time for the next dose, in which case the missed dose must be skipped entirely. It is procedurally mandated that the drug is not taken concurrently with certain agents like cholestyramine, colestipol, or aluminum-containing antacids, necessitating an interval of at least 2 hours between administrations.

Recent Clinical Evidence

Research Evidence / Overview of Studies


Combination Therapy vs. Monotherapy

Studies investigated the combination of Drug X and Drug Y in participants experiencing symptoms of Condition C. Studies evaluated this dual-agent approach for differences in the time to event and duration of observation regarding flare-ups.

  • Study Design: A retrospective analysis of three Phase II trials compared the combination of Drug X (400 mg) and Drug Y (10 mg) daily to Drug X monotherapy.
  • Key Findings: The analysis reported that the combination group demonstrated a difference in the mean score on the Disease Severity Index (DSI) after 12 weeks of participation, relative to the monotherapy group. The DSI score difference was investigated by researchers.

Drug X (Monotherapy)

Studies also examined Drug X as a standalone treatment. One key study reported findings related to joint mobility in participants with severe Condition C who were administered Drug X. This was measured via the Range-of-Motion (ROM) assessment tool.

  • Study Design: A randomized, controlled trial (RCT) with 450 participants evaluated the use of Drug X (400 mg daily) versus a placebo over a six-month period.
  • Reported Outcomes: Participants in the Drug X group reported a change in their mean ROM score from baseline, and researchers explored this difference relative to the placebo group. The study did not report data on comparisons to other active treatments.

Summary of Efficacy Endpoints

The evidence explored differences between combination therapy and monotherapy in relation to the rate of remission. Researchers used the stringent Clinical Remission Criteria (CRC) to define the endpoint. Findings related to the rate of remission were reported at the 1-year follow-up.

Key Studies & References Guidance on the Use of Anti-Inflammatory Agents in Pediatric Rheumatology (2023 Update)

Frequently Asked Questions (FAQ)

Common questions about Ursactive (FAQ)


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

If a dose is missed, official administration instructions advise skipping the missed dose entirely if it is almost time for the next scheduled dose. This is the procedural guidance provided in the official product information.

Q: Can Ursactive be taken on an empty stomach?

Official administration instructions specify that the medicine should be taken with food. The recommendation for taking it with food is described to help maximize the absorption of the active ingredient.

Q: Does Ursactive interact with oral contraceptives?

Regulatory documents describe that oestrogenic hormones, which are found in some oral contraceptives, may increase the cholesterol saturation of the bile. This effect can counteract the intended purpose of Ursactive when it is being used to dissolve gallstones.

Q: Are there any known drug-drug interactions that are officially prohibited with Ursactive?

Official documentation describes combinations that may reduce efficacy, such as bile acid sequestering agents (like Cholestyramine) and aluminum-based antacids. Official documentation states these agents should be taken at least two hours before or two hours after Ursactive to prevent binding and support proper absorption.

Q: Can Ursactive be used by people who have diabetes?

Diabetes is not listed as a formal contraindication in official prescribing information. The medicine is commonly studied in, and is not generally restricted for use in, patients with Type 2 Diabetes Mellitus.

Q: Can women who are breastfeeding use Ursactive?

Ursodeoxycholic acid, the active ingredient, is naturally present in human milk. Based on available data, the amount transferred to a breastfeeding infant is considered small and not expected to cause adverse effects. Based on available data, special precautions for use during breastfeeding are generally not noted in regulatory summaries.

Q: Is Ursactive suitable for use in children?

The medicine is approved for pediatric patients, typically those aged 6 to 18 years, but specifically for hepatobiliary disorders associated with cystic fibrosis. Its use for general gallstone dissolution or other conditions is not established in all pediatric populations.

Q: What is known about the safety of Ursactive for older adults?

Official dosing guidelines for conditions like primary biliary cholangitis (PBC) and gallstone dissolution establish a consistent dosing range. These official instructions apply to both the adult and elderly populations.

Q: What official warnings exist about drinking alcohol while on Ursactive?

While regulatory summary documents may not list a direct contraindication against alcohol, official sources recommend patients inform their doctor about alcohol consumption, as warnings relate to underlying liver conditions.

Q: Is Ursactive the same kind of medicine as other treatments for the liver/gallbladder?

Ursactive is classified by regulatory bodies as a Cholelitholytic Agent and a Hepatoprotective Agent. This means it belongs to the pharmacological group of bile acids and is specifically used to dissolve cholesterol stones and support liver cell health.

Q: Does Ursactive have a generic version available?

Yes, the active ingredient, Ursodeoxycholic Acid, is available as a generic medicine, commonly known as Ursodiol. It is manufactured and sold by multiple pharmaceutical companies.

Q: Why is Ursactive sometimes used for conditions other than gallstones?

The medicine has regulatory approval for multiple therapeutic uses. Its official indications include not only the dissolution of cholesterol gallstones but also the treatment of Primary Biliary Cholangitis (PBC).

Q: How long does it usually take to see any effect from Ursactive?

Ursactive is indicated for treatments that require a long duration. For gallstone dissolution, official sources indicate treatment can last up to two years. Observed changes in liver enzyme markers for Primary Biliary Cholangitis (PBC) can also take weeks or months.

Q: Will I notice anything immediately after starting Ursactive?

The mechanism of the drug involves gradual chemical and cellular changes within the bile and liver. Due to this nature, immediate or significant effects are generally not noticeable.

Q: How often are serious side effects reported for Ursactive?

Official regulatory documents classify serious effects, such as the calcification of gallstones, as Uncommon (occurring in 1/1,000 to < 1/100 patients) or Very Rare (occurring in < 1/10,000 patients).

Q: Are the reported side effects of Ursactive usually temporary?

Diarrhea, which is one of the most commonly reported side effects, is sometimes described in official information as dose-dependent. This means it can resolve or improve when the dose is reduced or if the therapy is stopped.

Q: Does Ursactive cause weight gain?

Some clinical trial data and medical literature related to the treatment of Primary Biliary Cholangitis (PBC) have reported weight gain as an observed event, particularly within the first year of treatment.

Q: Can Ursactive affect sleep or cause insomnia?

Regulatory safety information lists 'sleep disturbance' or 'insomnia' as a possible, though generally less common, reported side effect based on safety monitoring.

Q: Is Ursactive linked to any long-term liver or kidney problems?

For patients with advanced stages of primary biliary cirrhosis, official information notes that a worsening of hepatic cirrhosis has been observed in very rare cases. These reported changes have been observed to partially reverse when the medicine was discontinued.

Q: What is the typical timeframe for treatment with Ursactive?

The length of treatment depends on the condition. For Primary Biliary Cholangitis (PBC), therapy is generally described as long-term and often continued indefinitely. For dissolving gallstones, treatment can last up to two years.

Q: Can Ursactive be stopped suddenly, or does it need to be tapered off?

Patient information consistent with regulatory guidance describes that the medicine should not be stopped suddenly. Decisions to discontinue use are typically managed by a healthcare professional.

Q: Does Ursactive dissolve all types of gallstones?

No, official prescribing information states that Ursactive is only indicated for the dissolution of radiolucent (meaning non-calcified) cholesterol gallstones. It is prohibited for use with calcified gallstones.

Q: Does regulatory information mention any rare but serious side effects?

Yes, official regulatory documents list very rare side effects. These include the calcification of gallstones, which may sometimes require a surgical procedure.

Q: Do studies suggest Ursactive is effective for primary biliary cholangitis (PBC)?

Yes, regulatory agencies have granted approval for the use of Ursactive specifically for the treatment of Primary Biliary Cholangitis (PBC). This approval is based on a review of sufficient clinical evidence.

Q: Is Ursactive a cure for the conditions it treats?

Official information indicates that for gallstone dissolution, there is a possibility of stones reoccurring after treatment. For Primary Biliary Cholangitis (PBC), the long-term nature of therapy indicates management rather than cure.

Q: How does Ursactive get eliminated from the body?

Pharmacokinetic data shows that the drug is primarily processed by the liver and then excreted into the bile, where it is eliminated from the body through natural waste processes.

Q: Is it common for doctors to prescribe Ursactive long-term?

Yes, official administration guidelines state that therapy for Primary Biliary Cholangitis (PBC) is generally long-term and often continued indefinitely, making long-term prescription a common practice for that indication.

How should Ursactive be stored and disposed of?

Ursactive (ursodeoxycholic acid) must be stored and disposed of according to official regulatory labeling to ensure product integrity and safety.

Storage Conditions

Ursactive is required to be stored at Controlled Room Temperature (CRT), typically defined as 20 C to 25 C (68 F to 77 F), with permitted fluctuations up to 30 C. Storage must avoid excessive heat and the product must not be frozen. The container must be kept tightly closed.

Handling and Safety

Scored tablets that are broken into segments must be stored separately from whole tablets. A mandatory requirement is to store the medicine out of the sight and reach of children.

Disposal Instructions

Unused or expired Ursactive must be disposed of using an official drug take-back program. If this method is unavailable, the product should be mixed with an undesirable substance (such as used coffee grounds) and sealed in a bag before being placed in household trash. Do not flush the medication down a sink or toilet.

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

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