Urso (Ursodiol) — Patient Information Guide (Australia)

Urso is the brand name for ursodiol (also called ursodeoxycholic acid or UDCA). It is a bile acid medicine used to treat certain liver and bile duct conditions and, in some cases, specific types of gallstones. This page explains what Urso is, how it works, how it’s typically taken, and important safety and interaction information for people in Australia.

Please read this information in full. Your clinician may tailor your treatment plan to your situation. If you have questions about your own condition or medicines, speak with a healthcare professional.

Key Product Information

How Urso Works (Mechanism of Action)

Ursodiol is a naturally occurring bile acid that is modified for medical use. In the body, bile acids are involved in digestion and the movement of bile from the liver to the intestines.

Urso helps in several ways, depending on the condition being treated:

• Improves bile composition: It shifts the balance of bile acids, increasing the proportion of a less toxic bile acid (ursodiol), which may reduce injury to bile duct cells.
• Enhances bile flow: It can help bile move more effectively, reducing “cholestasis” (impaired bile flow).
• Protects liver and bile ducts: By reducing bile acid–related toxicity, it may help protect cells within the liver and bile ducts.
• Supports cholesterol stone dissolution (in selected cases): For some cholesterol gallstones, it can reduce the ability of bile to form stones and gradually dissolve existing stones over time.

Pharmacokinetics (How the Body Processes Urso)

Pharmacokinetics describes how a medicine is absorbed, distributed, metabolised, and excreted. Individual results can vary.

• Absorption: Ursodiol is absorbed from the small intestine. Food can influence absorption; many people take it with meals to improve tolerability.
• Distribution: After absorption, ursodiol is processed by the liver and incorporated into bile.
• Metabolism: In the liver and intestines, ursodiol is transformed into related bile acid forms.
• Excretion: It is eliminated primarily through the bile and faeces. A small portion undergoes enterohepatic circulation (recycling through the digestive tract and liver).
• Time course: For many liver/bile duct conditions, benefits are assessed through serial blood tests over weeks to months. For cholesterol gallstone dissolution, it is typically a longer process (often many months) and not all stones qualify.

Typical Uses in Australia

Urso is used for specific liver and bile duct conditions and, in selected circumstances, for certain types of gallstones. The exact indication and eligibility depend on diagnostic criteria.

Common indications include:

• Primary biliary cholangitis (PBC) (often referred to by clinicians as an autoimmune bile duct disease)
• Cholestatic liver diseases in appropriate patients where improving bile flow is beneficial (your clinician will confirm suitability)
• Selected cholesterol gallstones in patients who meet strict criteria (e.g., small, radiolucent/visible only with ultrasound depending on local practice, functioning gallbladder, and ability to tolerate long treatment timelines)

Important: Urso is not a rapid “gallbladder pain” medicine. It is a disease-modifying bile acid therapy used over time. If you have severe right upper abdominal pain, fever, jaundice, or vomiting, seek urgent medical advice.

When to Take Urso (Timing and Routine)

Many people do best with a consistent daily routine. The exact schedule depends on your dose and condition.

General timing guidance

• Take it at the same times each day.
• With food or meals: This may improve comfort and reduce stomach upset. Follow your local instructions.
• Spacing: If your dose is split, it’s usually taken in the morning and evening (or morning/lunch/evening), as directed.
• Missed dose: If you forget a dose, take it when you remember unless it is close to the next dose. Do not double up.

If you’re unsure about your schedule, check your label or ask your pharmacist.

Food Interactions and Practical Dietary Considerations

Food can affect bile acid digestion and may influence comfort and absorption. In practice, people often tolerate ursodiol better when taken with meals.

• Take with meals if advised: This is commonly recommended, especially if you experience nausea or stomach discomfort.
• Maintain a consistent diet: Sudden large changes in fat intake can alter bile secretion patterns.
• Gallstone context: If you’re being treated to dissolve stones, try to keep meals regular and avoid extreme fasting or very rapid weight loss unless advised by your clinician.

There are no “prohibited” foods in most patients, but personalised dietary guidance may be recommended for liver disease. Follow advice from your healthcare team.

Alcohol and Medicine Interactions

Alcohol

Alcohol can worsen liver health and may interfere with the management of liver-related conditions. If you take Urso for a bile duct or liver condition, it’s generally recommended to avoid or minimise alcohol and follow your clinician’s guidance.

If you have questions about what is safe for your specific liver status, ask your doctor or pharmacist.

Interactions with other medicines

Several medicines can reduce the effectiveness of ursodiol or affect bile acid handling. It’s important to share a complete list of medicines and supplements with your pharmacist, including:

• Bile acid sequestrants (commonly used for high cholesterol, e.g., cholestyramine, colestipol, some colesevelam products): these may bind bile acids in the gut and reduce ursodiol absorption. Separation by several hours is sometimes used, but exact timing needs individual advice.
• Some antacids and gastrointestinal medicines: effects vary depending on ingredients. Seek advice for spacing.
• Cholesterol-lowering medicines with bile-binding effects: may require review.
• Hormonal therapies and other liver-metabolised medicines: clinical impact can vary. Your prescriber/pharmacist can check for interactions based on your regimen.

Always check before starting new medicines, including herbal products (for example, St John’s wort) and over-the-counter supplements. Liver health can be affected by multiple substances.

Dosing — Typical Regimens

Dosing depends on the condition being treated, your age, weight, liver function, and response to therapy. Only your healthcare professional can confirm the correct dose for you.

How dosing is commonly structured

• Divided doses: Many regimens involve splitting the total daily dose into two (or more) administrations.
• Long-term treatment: For bile duct disorders, treatment often continues long enough to see improvements in biochemical markers.
• Gallstone dissolution: Usually requires long-term use and periodic imaging to assess progress. Not all stones respond.

What to expect from dosing instructions

Your label will show the strength and how many tablets/capsules to take. If you receive multiple strengths, follow the exact label instructions.

Do not change your dose or stop Urso without medical advice, especially when treating chronic bile duct disorders.

Indications and Treatment Goals

Treatment goals differ by condition.

• PBC and related cholestatic disorders: The goal is to improve liver test results, slow progression, and reduce bile duct injury.
• Cholesterol gallstones: The goal is to slowly dissolve stones in selected patients, avoiding surgery where appropriate. Treatment success depends on stone type and size.

Your clinician may schedule follow-up blood tests (and ultrasound or other imaging for gallstones) to measure response.

Safety Profile — Side Effects and When to Seek Help

Most people tolerate ursodiol reasonably well. However, like all medicines, Urso can cause side effects.

Common side effects

• Loose stools or diarrhoea
• Nausea or mild stomach discomfort
• Occasional abdominal bloating
• Mild back or muscle discomfort (less common)

Serious or urgent symptoms (seek medical advice promptly)

Stop and seek urgent advice if you develop signs of a serious allergic reaction or severe illness, such as:

• Swelling of the face, lips, tongue, or throat
• Breathing difficulty, wheezing, or severe rash/hives
• Severe or persistent vomiting
• Jaundice that is worsening, dark urine, pale stools
• High fever with abdominal pain (especially upper right abdomen)
• Signs of dehydration from severe diarrhoea

Long-term safety considerations

• Monitoring: Liver-related medicines often require periodic blood tests.
• Progress review: If you are using Urso for gallstones, response should be assessed over time.

Practical Use Tips (How to Get the Best Results)

• Take it consistently: Missing doses can affect outcomes, particularly in long-term liver disease management or gallstone dissolution.
• Track symptoms: Note changes in itchiness, fatigue, abdominal discomfort, or stool colour and report them at review visits.
• Attend blood test appointments: If you’re being monitored for liver function, keep regular appointments.
• Check for interaction risks: Before adding new medicines (including OTC products), ask a pharmacist about possible bile-acid-related interactions.
• Manage diarrhoea early: If loose stools occur, consult your pharmacist. Dose timing with food and hydration may help.
• Avoid alcohol where possible: For liver and bile duct conditions, alcohol may worsen disease outcomes.

Alternative Options

“Alternative” depends strongly on the underlying condition. Your clinician may consider other treatments, depending on diagnosis, severity, and response to ursodiol.

Examples of possible alternatives (condition-dependent)

• For PBC or chronic cholestatic disease: other bile acid therapies, immunomodulatory or other specialist options may be considered by your treating team.
• For cholesterol gallstones: alternatives may include observation, endoscopic/surgical approaches, or other non-surgical interventions depending on eligibility.
• Supportive care: management of itch, nutrition, and complications of liver disease can be part of treatment plans.

Do not switch treatments on your own. Discuss the risks and benefits with your healthcare professional.

Australia: Market, Legal and Guidance Context

In Australia, medicines are regulated through the Therapeutic Goods Administration (TGA). Availability and prescribing practices can vary by product formulation and indication.

For people using Urso, it’s common to receive ongoing monitoring and specialist review—especially for chronic liver and bile duct conditions such as PBC. Guidance and treatment approaches can evolve with new clinical evidence.

Recent guidance (how to think about it)

Although specific guidance can vary by clinician, professional societies commonly emphasise:

• Early assessment and diagnosis of cholestatic liver disease
• Appropriate use of ursodiol where indicated
• Regular monitoring of biochemical markers and symptom progression
• Review of response over time to determine if additional therapy is needed
• Patient-centred management of symptoms (e.g., itch) and complications

For the most current recommendations relevant to your condition, consult your specialist team or refer to locally published clinical guidance.

Delivery and Availability (Online Pharmacy in Australia)

Availability can vary by strength, pack size, and supplier stock. Online pharmacies generally:

• Confirm product details (brand, strength, quantity) before dispatch
• Package medicines securely to prevent damage during transit
• Use safe delivery practices for medicines
• Provide tracking information where available

Storage after delivery

• Store as directed on the packaging (typically at room temperature, protected from moisture and heat).
• Keep out of reach of children.
• Check expiry dates before use.

If you receive a medicine that appears damaged or is not what you expected, contact the pharmacy promptly.

FAQ — Frequently Asked Questions

1) What is Urso (ursodiol) used for?

Urso is used for certain bile duct and liver conditions (such as primary biliary cholangitis) and for selected cases of cholesterol gallstones where specific criteria are met. It is not meant for sudden gallbladder pain relief.

2) How long does Urso take to work?

For liver/bile duct conditions, improvement is assessed with blood tests over time (often weeks to months). For cholesterol gallstones, dissolution is gradual and may take many months. Your clinician will monitor your progress and determine whether continuing therapy is appropriate.

3) Should I take Urso with food?

Many people find it helps to take ursodiol with meals to improve comfort and tolerability. Follow your label and instructions from your pharmacist or clinician.

4) Can I drink alcohol while taking Urso?

Alcohol may worsen liver health. If you’re using Urso for a liver/bile duct condition, it’s generally best to avoid or minimise alcohol and follow your clinician’s advice.

5) What should I do if I miss a dose?

Take it when you remember unless it’s close to the next scheduled dose. Do not take a double dose to make up for a missed tablet/capsule.

6) What interactions should I watch for?

Medicines that bind bile acids in the gut (such as certain cholesterol medicines) may reduce ursodiol effectiveness. Other medications, including some antacids or gastrointestinal products, may also affect absorption. Always check with a pharmacist before starting new medicines or supplements.

7) What side effects are common?

The most commonly reported effects include diarrhoea, loose stools, and mild nausea or stomach discomfort. If symptoms are persistent or severe, seek advice from a healthcare professional.

8) When should I seek urgent medical help?

Seek urgent care if you have signs of an allergic reaction (swelling, breathing trouble, severe rash), severe vomiting, worsening jaundice, or high fever with abdominal pain.

9) Can Urso be used for any type of gallstone?

No. Ursodiol is mainly for selected cholesterol gallstones and specific patient criteria. Some stones may not dissolve, and other treatments may be more appropriate depending on your ultrasound findings and symptoms.

10) How will my progress be monitored?

For bile duct/liver conditions, your clinician may monitor liver blood tests (such as enzymes and bilirubin) regularly. For gallstones, follow-up imaging may be used to assess changes in stone size and number.

Important Reminder

This guide is intended to help you understand Urso (ursodiol) and how it’s commonly used in Australia. It does not replace medical advice. If you are unsure about your dosing schedule, interactions, or side effects, consult your pharmacist or doctor.