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Moderiba (ribavirin, USP) in combination with peginterferon alfa-2a is indicated for the treatment of patients 5 years of age and older with chronic hepatitis C (CHC) virus infection who have compensated liver disease and have not been previously treated with interferon alpha.
The following points should be considered when initiating Moderiba combination therapy with peginterferon alfa-2a:
- This indication is based on clinical trials of combination therapy in patients with CHC and compensated liver disease, some of whom had histological evidence of cirrhosis (Child-Pugh class A), and in adult patients with clinically stable HIV disease and CD4 count greater than 100 cells/mm3.
- This indication is based on achieving undetectable HCV-RNA after treatment for 24 or 48 weeks, based on HCV genotype, and maintaining a Sustained Virologic Response (SVR) 24 weeks after the last dose.
- Safety and efficacy data are not available for treatment longer than 48 weeks.
- The safety and efficacy of ribavirin and peginterferon alfa-2a therapy have not been established in liver or other organ transplant recipients, patients with decompensated liver disease, or previous non-responders to interferon therapy.
- The safety and efficacy of ribavirin therapy for the treatment of adenovirus, RSV, parainfluenza or influenza infections have not been established. Moderiba should not be used for these indications. Ribavirin for inhalation has a separate package insert, which should be consulted if ribavirin inhalation therapy is being considered.
There is currently no drug history available for this drug.
Moderiba (ribavirin, USP) is a nucleoside analogue with antiviral activity. The chemical name of ribavirin is 1-β-D-ribofuranosyl-1H-1,2,4-triazole-3-carboxamide and has the following structural formula:
The molecular formula of ribavirin is C8H12N4O5 and the molecular weight is 244.2. Ribavirin is a white to off-white powder. It is freely soluble in water and slightly soluble in anhydrous alcohol.
Moderiba is available as a blue-colored (shade depending on strength), capsule-shaped, film-coated tablet for oral administration. Each tablet contains 200 mg, 400 mg, or 600 mg of ribavirin and the following inactive ingredients: microcrystalline cellulose, lactose monohydrate, croscarmellose sodium, povidone, magnesium stearate, and purified water. The coating of the 200 mg tablet contains partially hydrolyzed polyvinyl alcohol, titanium dioxide, polyethylene glycol 3350, talc, FD&C blue #2 [indigo carmine aluminum lake], and carnauba wax. The coating of the 400 mg and 600 mg tablet contains partially hydrolyzed polyvinyl alcohol, titanium dioxide, polyethylene glycol 3350, talc, FD&C blue #1 [brilliant blue FCF aluminum lake], and carnauba wax.
Moderiba complies with Organic Impurities: Procedure 1 of the current USP Monograph for Ribavirin Tablets.