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What is XURIDEN?

XURIDEN (uridine triacetate) oral granules is a pyrimidine analog indicated for uridine replacement therapy. Uridine triacetate has the chemical designation (2',3',5'-tri-O-acetyl-ß-D-ribofuranosyl)-2,4(1H,3H)-pyrimidinedione. The molecular weight is 370.3 and it has an empirical formula of CHNO. The structural formula is:

Each single-use 2 gram packet of XURIDEN orange-flavored oral granules (95% w/w) contains 2 grams of uridine triacetate and the following inactive ingredients: ethylcellulose (0.062 grams), Opadry Clear [proprietary dispersion of hydroxypropylmethylcellulose and Macrogol] (0.015 grams), and natural orange juice flavor (0.026 grams).

What does XURIDEN look like?

What are the available doses of XURIDEN?

Oral granules: 2 gram packets. ()

What should I talk to my health care provider before I take XURIDEN?

How should I use XURIDEN?

XURIDEN is indicated for the treatment of hereditary orotic aciduria.

The recommended starting dosage of oral XURIDEN is 60 mg/kg once daily. Increase the dosage of XURIDEN to 120 mg/kg (not to exceed 8 grams) once daily for insufficient efficacy, such as occurrence of one of the following:

The XURIDEN dose to be administered at the 60 mg/kg and 120 mg/kg dose levels by body-weight is presented in Tables 1 and 2.

A 2 gram packet of XURIDEN contains approximately ¾ teaspoon of XURIDEN. Therefore, in the tables below for patients requiring doses in multiples of 2 grams (¾ teaspoon) an entire packet(s) may be administered without weighing or measuring.

XURIDEN Daily Dose Based on Body Weight (kg)

What interacts with XURIDEN?

Sorry No Records found

What are the warnings of XURIDEN?

Sorry No Records found

What are the precautions of XURIDEN?

Sorry No Records found

What are the side effects of XURIDEN?

Sorry No records found

What should I look out for while using XURIDEN?


What might happen if I take too much XURIDEN?

Sorry No Records found

How should I store and handle XURIDEN?

Store Vizamyl at 2° to 30°C (36° to 86°F). The product does not contain a preservative. Store Vizamyl within radiation shielding. Do not use Vizamyl after the expiry date and time stated on the label.XURIDEN orange-flavored oral granules (95% w/w) are available in single-use packets (NDC 69468-152-02) containing 2 grams of uridine triacetate in cartons of 30 packets each (NDC 69468-152-30).


Clinical Information

Chemical Structure

No Image found
Clinical Pharmacology

Uridine triacetate is an acetylated form of uridine. Following oral administration, uridine triacetate is deacetylated by nonspecific esterases present throughout the body, yielding uridine in the circulation (Figure 1).

Figure 1: Uridine Triacetate Conversion to Uridine

XURIDEN provides uridine in the systemic circulation of patients with hereditary orotic aciduria who cannot synthesize adequate quantities of uridine due to a genetic defect in uridine nucleotide synthesis.

Non-Clinical Toxicology




This information is obtained from the National Institute of Health's Standard Packaging Label drug database.

While we update our database periodically, we cannot guarantee it is always updated to the latest version.



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