Multiple sclerosis:

Indications for: REBIF

Relapsing forms of multiple sclerosis (MS), to include clinically isolated syndrome, relapsing-remitting disease, and active secondary progressive disease.

Adult Dosage:

Pre-medicate with analgesics and/or antipyretics on treatment days to ameliorate flu-like symptoms. Give by SC inj at least 48hrs apart, preferably in the PM. Rotate inj sites. Initially 4.4mcg 3 times per week for 2 weeks, titrate to target 22mcg 3 times per week by Week 5; or, initially 8.8mcg 3 times per week for 2 weeks, titrate to target 44mcg 3 times per week by Week 5. See full labeling. May need dose reduction if SGPT >5×ULN or leukopenia occurs.

Children Dosage:

Not established.

REBIF Warnings/Precautions:

Depression; consider discontinuing if occurs. Suicidal ideation. Discontinue immediately if jaundice or other signs of liver dysfunction occur. Active or history of liver disease. Increased serum SGPT >2.5×ULN. Alcohol abuse. Seizure disorders. Risk of thrombotic microangiopathy; discontinue if occurs. History of thyroid dysfunction; do thyroid tests every 6 months. Monitor blood counts and liver function at 1, 3, and 6 months after initiation, then periodically thereafter. If myelosuppression, monitor CBCs with differential and platelets more intensively. Elderly. Pregnancy. Nursing mothers.

REBIF Classification:


REBIF Interactions:

Risk of hepatic injury with concomitant hepatotoxic drugs or alcohol.

Adverse Reactions:

Inj site reactions (necrosis, cellulitis, abscess, inflammation, pain), flu-like symptoms, abdominal pain, depression, elevated liver enzymes, hematologic abnormalities; rare: hepatic failure, anaphylaxis (discontinue if occurs).

Generic Drug Availability:


How Supplied:

Prefilled syringe (22mcg, 44mcg)—1, 12; Rebidose autoinjector (22mcg, 44mcg)—12; Titration Pack: Prefilled syringes or Rebidose autoinjectors (6×8.8mcg + 6×22mcg)—1