Ursodiol (brand name) contains the active ingredient Ursodeoxycholic Acid. It belongs to the Digestive Health therapeutic class and is marketed as a pill in strengths of 150 mg and 300 mg. In Hong Kong, Ursodiol is a prescription-only medication regulated by the Department of Health under the Medicines and Poisons Ordinance.
Ursodeoxycholic Acid is a naturally occurring secondary bile acid that modifies the composition of the bile pool. Its main actions include:
These mechanisms collectively improve bile composition, prevent stone formation, and support liver function in cholestatic diseases.
Ursodiol is approved for the following indications in Hong Kong:
The medication is intended for adult patients; pediatric use is uncommon and should be evaluated by a hepatologist.
If you are taking other prescription or over-the-counter medicines, inform your healthcare provider before starting Ursodiol.
Specific dosing should be individualized by a qualified healthcare professional.
This article provides educational information about Ursodiol and is not a substitute for professional medical advice. Treatment decisions, including use for unapproved indications, must be made under the guidance of a qualified healthcare provider. The content is intended for informational purposes and does not constitute medical recommendations. Always consult a physician before starting, stopping, or changing any medication regimen.
Ursodiol does not directly interact with statins or other lipid-lowering agents, but both types of drugs affect liver function. Routine liver-enzyme monitoring is advisable when they are used together to ensure safety.
If you miss a dose, take it as soon as you remember unless it is almost time for your next scheduled dose. In that case, skip the missed dose and continue with your regular schedule. Do not double the dose to catch up.
Yes, Ursodiol is commonly prescribed to reduce the risk of cholesterol gallstone formation in patients undergoing rapid weight loss after bariatric procedures. It works by lowering bile cholesterol saturation.
Gallstone dissolution can require several months to years, depending on stone size and composition. Regular imaging is recommended to assess progress.
Safety data in pregnancy are limited. Ursodiol may be prescribed if the potential benefit to the mother outweighs any possible risk to the fetus, and it should be done under specialist supervision.
Ursodiol tablets are usually white to off-white round pills, imprinted with the dosage strength (e.g., “150” or “300”) on one side.
By reducing bile-acid cholesterol content, Ursodiol can modestly lower serum cholesterol, but it is not a primary therapy for hypercholesterolemia.
Elderly individuals may have reduced hepatic reserve and may be more prone to side effects. Starting at the lower end of the dosing range and titrating slowly is recommended.
Ursodiol is not a controlled substance and is not typically screened for in occupational drug-testing programs. However, disclose all medications if required.
Ursodiol is the only bile-acid medication specifically approved for gallstone dissolution and PBC. Other agents, such as chenodeoxycholic acid, have different safety profiles and are not commonly used for these indications.
