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Urso 250 (Ursodiol) - Drug Interactions, Contraindications, Overdosage, etc

 
 



DRUG INTERACTIONS

Bile acid sequestering agents such as cholestyramine and colestipol may interfere with the action of URSO 250™ by reducing its absorption. Aluminum-based antacids have been shown to adsorb bile acids in vitro and may be expected to interfere with URSO 250™ in the same manner as the bile acid sequestering agents. Estrogens, oral contraceptives, and clofibrate (and perhaps other lipid-lowering drugs) increase hepatic cholesterol secretion, and encourage cholesterol gallstone formation and hence may counteract the effectiveness of URSO 250™.

OVERDOSE

Accidental or intentional overdosage with ursodiol has not been reported. The most severe manifestation of overdosage would likely consist of diarrhea which should be treated symptomatically.

Single oral doses of ursodiol at 10, 5 and 10 g/kg in mice, rats and dogs, respectively were not lethal. A single oral dose of ursodiol at 1.5 g/kg was lethal in hamsters. Symptoms of acute toxicity were salivation and vomiting in dogs, and ataxia, dyspnea, ptosis, agonal convulsions and coma in hamsters.

CONTRAINDICATIONS

Hypersensitivity or intolerance to ursodiol or any of the components of the formulation.

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