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Ursochol (Ursodiol)

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Ursochol (Ursodiol)

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Treatment option:

Medically reviewed

Marina Burgos

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.

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Overview of Ursochol (Ursodiol)

Ursochol is a medication containing the active substance Ursodiol (ursodeoxycholic acid), classified as a bile acid preparation. Its primary function is to normalize the chemical composition of bile, primarily by reducing the amount of cholesterol.

Property Description
Active Ingredient Ursodiol (Ursodeoxycholic acid, UDCA)
Form Oral capsule, oral tablet, oral suspension
Pharmacological Class Bile acid preparation, Cholelitholytic agent
Common Use Normalizing bile fluidity and composition
Origin Synthetically manufactured secondary bile acid

What Type of Medicine is Ursochol (Ursodiol)?

Ursochol is a medication whose active ingredient is Ursodiol, chemically designated as ursodeoxycholic acid.

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What side effects are possible with Ursochol (Ursodiol)?

Possible Side Effects and Safety Information

Ursodiol's safety profile is documented based on frequency classifications and system-organ effects derived from regulatory sources, such as the EMA and FDA. Adverse reactions are grouped by how often they occur and which body system is involved.


Officially Documented Adverse Reactions

Adverse effects are primarily observed in the gastrointestinal and hepatobiliary systems.

Classification Common (Observed in 1 to 10 out of 100 patients) Very Rare (Observed in fewer than 1 out of 10,000 patients)
Gastrointestinal Diarrhea, pasty stools Severe right upper abdominal pain
Hepatobiliary Calcification of gallstones, decompensation of hepatic cirrhosis
Skin Alopecia, Rash Urticaria (hives)

Other adverse events reported with a Frequency Not Known include nausea, vomiting, abdominal discomfort, and itching (pruritus).


Safety Considerations and Restrictions

Serious adverse reactions are reported very rarely, most notably decompensation of hepatic cirrhosis in patients with advanced primary biliary cirrhosis. The regulatory label includes specific contraindications that restrict the use of Ursodiol. This medicine must not be used in individuals with complete occlusion of the biliary tract, acute inflammation of the gallbladder, frequent episodes of biliary colic, or the presence of radio-opaque calcified gallstones.

To ensure safety, regulatory documents mandate that liver function parameters, including ALT, AST, and alkaline phosphatase, should be monitored monthly for the first three months of therapy, and every six months thereafter. Use during pregnancy is generally restricted by regulators due to animal data, with usage advised only if clearly necessary.

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Overdose and Emergency Response

Overdose and When to Seek Help

There have been no reports of accidental or intentional overdosage with Ursochol (ursodiol) resulting in serious acute toxicity in humans. The most likely consequence of a significant overdose is severe diarrhea, as the unabsorbed bile acid reaches the colon and exerts a laxative effect. Other potential gastrointestinal symptoms may include nausea, vomiting, or abdominal pain. Prolonged overdose could potentially lead to chronic toxicity, but specific data are limited.

In the event of a suspected overdose, it is essential to seek immediate medical attention. Contact a poison control center or emergency services right away. Management of an acute overdose typically involves supportive measures and treatment of the symptoms, such as the maintenance of fluid and electrolyte balance, especially if severe diarrhea occurs. No specific antidote is available for ursodiol overdose.

When to Contact Emergency Services

Seek immediate emergency medical care (call 911 or local emergency services) if an overdose is suspected or if you experience any signs of a severe allergic reaction, such as:

  • Swelling of the face, lips, tongue, or throat
  • Difficulty breathing or wheezing
  • Severe rash or hives
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Therapeutic Uses of Ursochol (Ursodiol)

What Ursochol (Ursodiol) Treats: Main Uses and Benefits

Ursochol (Ursodiol) is relevant across therapeutic domains involving the biliary system and liver function, providing supportive relief in conditions marked by increased physiological stress. It is commonly used to help manage Primary Biliary Cholangitis (PBC) and may assist with symptomatic management relevant to cholesterol gallstone formation and presence.

This medication helps address symptom clusters that may become intense, such as the persistent pruritus (severe itching) associated with PBC, and supports the management of heightened biomarkers of liver stress. It is also used in clinical scenarios where non-surgical management of small, non-calcified stones is considered relevant, or in situations associated with rapid weight loss where preventing new gallstone formation is a therapeutic priority.

The supportive therapeutic benefit helps patients cope more steadily with symptom fluctuations. This provides relief when symptoms interfere with routine activities, contributing to easing the overall symptom load during difficult phases.


Quick Fact: Relief for Pruritus and Biliary Discomfort

Ursochol is considered relevant for easing distress associated with cholestasis-related itching and for managing the likelihood of painful, acute episodes of biliary colic.

Regulatory References

  1. NIH MedlinePlus Drug Information
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Eligibility and Restrictions for Use

Who Can and Cannot Use Ursochol (Ursodiol)?

Official regulatory documents establish strict criteria for who may and may not use Ursochol (ursodiol), primarily based on hypersensitivity, the status of the bile ducts, and the characteristics of gallstones.


Contraindications (Must Not Use)

The medicine is contraindicated (must not be used) in patients with:

  • Known Hypersensitivity: A prior allergic reaction to ursodiol or any other ingredient in the formulation.
  • Complete Biliary Obstruction: Any complete blockage of the bile ducts, either extrahepatic (outside the liver) or widespread intrahepatic (within the liver).
  • Calcified Gallstones: For gallstone dissolution treatment, the medicine is ineffective and contraindicated if the gallstones are radio-opaque (calcified).
  • Acute Inflammation: Acute inflammation of the gallbladder or bile ducts (cholecystitis or cholangitis).

Restricted or Not Recommended Populations

  • Pregnancy and Lactation: The drug is not recommended for use in women who are or may become pregnant due to insufficient safety data. Women of childbearing potential receiving the medicine for gallstone dissolution should use effective non-hormonal contraception. Use is also not recommended during breastfeeding as it is unknown if the drug is excreted in human milk in clinically relevant amounts.
  • Gallbladder Function: For gallstone dissolution, the gallbladder must be able to function (visualize on an oral cholecystogram) and its non-visualization during therapy is a reason to discontinue the drug.
  • Pediatric Use: In the US, safety and effectiveness for general pediatric use have not been established; however, in some global regions, an indication for hepatobiliary disorders associated with cystic fibrosis is authorized for children aged 6 to less than 18 years.
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What should I know about interactions with other medicines?

Interactions with other medicines and products

Ursodiol's official interaction profile is structured around two primary regulatory constraints: agents that interfere with its absorption and those that counteract its intended effect. Co-administration with bile acid sequestrants such as Cholestyramine or Colestipol, or with aluminum-based antacids, leads to a pharmacokinetic interaction that reduces Ursodiol's intestinal absorption and effectiveness. Regulatory documents mandate these binding agents must be taken at least two hours before or after Ursodiol to preserve bioavailability.

Pharmacodynamic and Metabolic Considerations

Therapeutic agents that increase hepatic cholesterol secretion, including estrogens in hormonal contraceptives or certain cholesterol-lowering agents (e.g., Clofibrate), may oppose the goal of Ursodiol treatment and must be avoided. Ursodiol has also been documented to affect the plasma exposure of co-administered drugs. Its use can lead to increased absorption of Ciclosporin (Cyclosporine), requiring necessary monitoring. Conversely, interactions resulting in a reduction of plasma levels have been reported for drugs like Nitrendipine and Dapsone, indicating an impact on their systemic exposure.

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Mechanism of Action

How Ursochol (Ursodiol) Works: Mechanism of Action

Ursodiol, a hydrophilic bile acid, primarily modulates the enterohepatic circulation by displacing endogenous hydrophobic bile acids. This competitive displacement alters the bile acid pool composition, reducing the relative concentration of potentially toxic species. Concurrently, Ursodiol acts as an inhibitor of intestinal cholesterol absorption and suppresses the hepatic secretion of cholesterol into the bile. This dual action results in a reduction of bile cholesterol saturation, generating a physiochemical environment that maintains cholesterol in a solubilized state.

At the cellular level, Ursodiol integrates into the plasma and mitochondrial membranes of hepatocytes and cholangiocytes. This acts as a cytoprotective stabilizer, preventing the membrane damage and subsequent apoptosis induced by concentrated hydrophobic bile acids. Furthermore, Ursodiol stimulates specific transporters within the biliary system, increasing the flow of water and bicarbonate ions (HCO3^-). This mechanism produces an increase in bile volume and flow (choleretic action), contributing to increased biliary clearance.

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Dosage and Administration Information

Ursochol, which contains the active ingredient ursodiol (ursodeoxycholic acid), is an oral medication used to treat primary biliary cholangitis (PBC) and to dissolve certain types of gallstones. It is crucial to take this medication exactly as prescribed by your healthcare provider.

General Administration

  • Tablets/Capsules: Swallow the tablet or capsule whole with water. Do not chew or crush the medication unless specifically instructed by a healthcare professional. For patients with Primary Biliary Cholangitis, the medication is typically taken in two to four divided doses daily, with food.
  • Dosing: Dosing for ursodiol is often determined by a patient's body weight. For the treatment of PBC, the typical adult dosage is 13 to 15 mg/kg per day administered in divided doses. Dosing for gallstone dissolution or prevention will differ. Always follow the specific instructions provided by your prescriber, as they may adjust the regimen based on your response and needs.

Specific Instructions

  • Scored Tablets: If you are prescribed a scored tablet (like Urso Forte) that requires breaking for a specific dose, place the tablet on a flat surface with the scored section on top. Apply gentle, steady pressure with your thumbs to snap the tablet segments apart. Swallow the segment(s) immediately with water, as keeping them in your mouth may reveal a bitter taste.
  • Duration of Treatment: Treatment for gallstones may last for many months to years. Do not discontinue taking ursodiol without consulting your doctor, even if you begin to feel well, as the gallstones may not fully dissolve or may recur.
  • Monitoring: Your doctor will order blood tests to monitor your liver function, and you may need regular ultrasound examinations to assess the status of gallstones during therapy.
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Recent Clinical Evidence

Research evidence / Overview of studies

Overview of Clinical Research

Research has explored the outcomes of Compound X on mobility and joint pain in participants with osteoarthritis (OA). Findings from multiple phase 3 trials have been published. The body of evidence primarily focuses on the effects observed after 12 weeks of continuous use.

Pathways and Actions Examined

Studies have investigated the compound's actions. One study investigated the relationship between the compound and the TNFalpha pathway. Further research continues to evaluate how the compound interacts with the cartilage matrix.

Efficacy Findings

  • Mobility: Multiple studies evaluated whether Compound X was associated with changes in scores on the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) for physical function.
  • Pain Levels: Assessments of pain, measured using a Visual Analog Scale (VAS) over a 12-week period, were a primary endpoint in most trials. Study participants reported changes after four weeks of use.
  • Combination Therapy: Research compared the combination of Compound X and physical therapy against monotherapy alone. Data analysis assessed differences in primary and secondary outcome measures between the two groups.
  • Muscle Stiffness: Secondary analyses examined whether there was a reduction in associated muscle stiffness. The results of these exploratory assessments were mixed across different study populations.

Tolerability Findings

Compound X has been studied across various populations for tolerability.

  • General Tolerability: Adverse events observed in trials included reports of mild gastrointestinal distress and transient headache. Rates of discontinuation due to adverse events were assessed across all trials.
  • Hepatic Impairment: Tolerability studies in individuals with mild hepatic impairment did not report an increase in adverse events. Data regarding individuals with moderate to severe hepatic impairment remain limited.
  • Exclusion Criteria: Studies did not include participants with inflammatory arthritis. Enrollment criteria generally excluded individuals with a history of serious cardiovascular or renal conditions.

Pharmacokinetics

Research evaluated dosing schedules, including administration before bedtime. Other pharmacokinetic studies examined the compound’s half-life and metabolite concentration in plasma following both oral and intravenous administration in healthy volunteers.

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Frequently Asked Questions (FAQ)

Common questions about Ursochol (Ursodiol) (FAQ)

Q: How long does it typically take for Ursochol to start showing an effect on lab tests?

A: For patients with primary biliary cholangitis (PBC), regulatory information indicates that liver function parameters are typically monitored monthly for the first three months of treatment. For gallstone dissolution, a therapeutic concentration of the drug in the bile is often reached after about three weeks of continuous use.

Q: How long does it usually take for gallstones to dissolve completely with Ursochol treatment?

A: The treatment for dissolving gallstones is often a lengthy process that can take many months, and in some cases, up to two years. Official drug information recommends continuing the treatment for at least three months after imaging shows the gallstones have fully dissolved.

Q: Is it normal to experience mild diarrhea when first starting Ursochol?

A: Diarrhea and pasty stools are commonly reported side effects in official documents. Regulatory documents mention that if diarrhea occurs, the dose is sometimes modified.

Q: What happens if a person misses a dose of Ursochol?

A: General medication guidance indicates that if a dose is missed, it is usually skipped, and the patient returns to their regular schedule. Taking two doses at once to make up for a missed one is generally not advised.

Q: Is it possible for the active ingredient in Ursochol to pass into breast milk?

A: Official regulatory warnings state that it is not definitively known whether the active ingredient in Ursochol passes into human milk in amounts that would be clinically relevant. Due to this uncertainty, regulatory documents indicate that use of the medicine during breastfeeding is generally restricted.

Q: Is Ursochol used to treat children for any conditions?

A: In the United States, the safety and effectiveness of Ursochol for general use in children have not been established. However, some global regulatory bodies have authorized its use for children between 6 and 18 years of age to treat liver and bile duct disorders linked to cystic fibrosis.

Q: Does Ursochol have contraindications related to Crohn's disease or prior bowel surgery?

A: Some regulatory documents list inflammatory diseases of the small intestine and colon as conditions where this medicine should not be used. This caution is based on concerns that the drug could be poorly absorbed or may affect the existing inflammation.

Q: What is the difference between Ursochol and other common bile acid medications?

A: Ursochol contains ursodeoxycholic acid, which is a naturally occurring bile acid. Its key action, according to official documents, is to displace other potentially toxic bile acids and suppress the liver's secretion of cholesterol into the bile. This mechanism of action relates to its approved uses in specific liver and gallbladder conditions.

Q: Are weight gain or weight loss listed as potential side effects of Ursochol?

A: Some reports of adverse events include instances of unusual weight gain or weight loss. However, these side effects are listed with an unspecified or unknown frequency, meaning the frequency of these occurrences is not specified in common reports.

Q: Is hair thinning or hair loss a common side effect of Ursochol?

A: Yes, hair loss (alopecia) is listed in regulatory product information as a commonly reported side effect. This means it has been observed in trials involving 1 to 10 out of every 100 patients.

Q: Can Ursochol cause feelings of dizziness or headache?

A: Headache and dizziness are adverse events that have been reported in connection with the use of Ursochol. Some regulatory sources list these as very common side effects.

Q: Is it possible for Ursochol to cause stomach discomfort or nausea?

A: Official documents report that both nausea and abdominal discomfort have occurred in patients taking Ursochol. In official documents, the frequency of these specific events is generally categorized as 'not known'.

Q: Are there any specific foods or drinks that should be avoided while taking Ursochol?

A: There are no specific foods or drinks listed in official documents as needing complete avoidance while taking this medicine. However, due to the drug’s use in treating liver conditions, regulatory guidance often stresses caution regarding alcohol.

Q: Is it necessary to avoid alcohol while undergoing treatment with Ursochol?

A: While the drug label may not explicitly prohibit alcohol consumption, general medical guidance for people with liver-related conditions often stresses caution regarding alcohol. Regulatory materials advise consulting a healthcare provider regarding alcohol use while on treatment.

Q: Is Ursochol safe for use during pregnancy, according to official classifications?

A: Official drug information indicates that use during pregnancy is typically restricted unless the healthcare provider determines that the potential benefit outweighs the potential risk. Historically, some global health agencies classified the medicine in a category that requires caution due to animal data.

Q: Are there special considerations for elderly patients taking Ursochol?

A: Official dosing guidelines for the treatment of gallstones and primary biliary cholangitis often treat the 'Adults and Elderly' population together. This indicates that a separate or special dosing regimen is typically not required solely on the basis of advanced age.

Q: Can Ursochol be used to prevent gallstones in people who are losing weight rapidly?

A: Yes, regulatory documents explicitly state that Ursochol can be used to help prevent the formation of gallstones in overweight individuals who are experiencing rapid weight loss.

Q: What is the risk of gallstones returning after successfully dissolving them with Ursochol?

A: Official documents caution that gallstones can recur after successful treatment has been completed. Evidence from some studies suggests that new stones may form in some patients within five years after treatment is stopped.

Q: Is Ursochol treatment for primary biliary cholangitis (PBC) typically a long-term therapy?

A: For patients being treated for primary biliary cholangitis (PBC), official regulatory guidelines indicate that the use of this medicine is generally intended to be a long-term or life-long therapy. The goal is to help slow down the progression of the disease.

Q: Are there any known interactions between Ursochol and common vitamins or supplements?

A: While there are no major interactions reported with common vitamins like Vitamin D3, the official product information should be consulted regarding all co-administered drugs and supplements. A healthcare provider is the best source for evaluating potential interactions with all supplements.

Q: Why do official documents state that Ursochol may not work for all patients with gallstones?

A: The effectiveness of Ursochol is limited by the type and size of the gallstones. Official labeling indicates that it only works on non-calcified (non-hardened) cholesterol stones, and the chance of success is lower for larger stones.

Q: Does Ursochol have a known effect on cholesterol levels?

A: Official regulatory descriptions of the drug's action state that it works by suppressing the liver's creation and release of cholesterol and by inhibiting cholesterol absorption in the intestines. This action specifically reduces the amount of cholesterol in the bile.

Q: Are there differences in effectiveness between the capsule and tablet forms of Ursochol?

A: Official public assessment reports generally consider different oral formulations, such as capsules and tablets, to be comparable in terms of absorption and overall effectiveness, provided they are taken at the prescribed dose.

Q: How does Ursochol affect the natural composition of bile acids in the body?

A: According to the official mechanism of action, Ursochol works by changing the mix of bile acids. After repeated use, the drug becomes the major component of the bile acid pool, replacing other bile acids that are potentially more toxic to liver cells.

Q: Is it normal to have persistent itching (pruritus) while taking Ursochol for PBC?

A: For patients with primary biliary cholangitis, the symptom of itching, or pruritus, may temporarily worsen when treatment begins. If severe or persistent itching occurs, regulatory information indicates that the dose is sometimes reduced.

Q: What is the general classification of Ursochol (e.g., bile acid, hepatoprotective agent)?

A: The World Health Organization (WHO) and other regulatory bodies classify Ursochol as a bile acid preparation and a cholelitholytic agent (a medicine that dissolves gallstones). It is also described as having cell-protecting, or hepatoprotective, actions on the liver.

Q: Are there any warnings about taking Ursochol with lipid-lowering drugs like fibrates?

A: Official regulatory warnings advise caution with certain cholesterol-lowering medicines, such as fibrates. These types of drugs may work against Ursochol by increasing the amount of cholesterol the liver secretes into the bile.

Q: Do patient characteristics like body weight influence the treatment outcome with Ursochol?

A: Yes, official prescribing information often states that the dosage of Ursochol is determined based on the patient's body weight. This is necessary to achieve the correct concentration of the drug in the bile, which is essential for effective treatment.

Q: Are there any published studies on the long-term safety of Ursochol?

A: Official clinical literature confirms that the medicine has been studied for long periods, including trials lasting over two years for patients with primary biliary cholangitis. These studies have helped assess the long-term tolerability of the drug.

Q: Can Ursochol make the symptoms of an existing condition like an ulcer worse?

A: Some regulatory documents list peptic ulcers as a condition where the use of this medicine should be avoided. Additionally, gastrointestinal side effects are commonly reported, which may cause concern for those with existing digestive issues.

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How should Ursochol (Ursodiol) be stored and disposed of?

Ursochol (ursodiol) must be stored under specific conditions to maintain stability, and disposed of according to official regulatory guidance.

Storage and Handling Requirements

Ursodiol is required to be stored at Controlled Room Temperature (CRT), which is 20 C to 25 C (68 F to 77 F). The product must be stored in its original container and must be kept out of the reach and sight of children. If tablets are scored, the half-tablets must be stored separately and have a limited in-use stability period (e.g., up to 28 days for some formulations) when stored correctly.

Disposal Instructions

Any unused or expired medicinal product must be disposed of in accordance with local requirements. Governmental guidance advises that medicines should not be disposed of via household rubbish or wastewater.

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

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