Interferon beta-1a (IM)

🧮 Dose calculator

Multiple sclerosis (relapsing) · Regimen source: FDA Avonex · 2.1

• • To reduce flu-like symptoms: start 7.5 mcg and increase by 7.5 mcg weekly over 3 weeks. Analgesic/antipyretic on injection days. FDA Avonex · 2.1FDA Avonex · 2.3

Enter age (weight is optional for this regimen).

👥 Special populations

• 🤰 PregnancyUse with caution

  Label states no clear risk or has limited data; use only if needed, under medical advice. FDA Avonex · 8.1

  “Risk Summary Data from a large population-based cohort study, as well as other published studies over several decades, have not identified a drug-associated risk of major birth defects with the use of interferon beta products during early pregnancy.”

• 🤱 BreastfeedingUse with caution

  Label: use with caution while breastfeeding; see the label text. FDA Avonex · 8.2

  “Risk Summary Limited published literature has described the presence of interferon beta-1a products in human milk at low levels.”

• 👶 ChildrenSafety not established

  Label: safety and effectiveness in children have not been established. FDA Avonex · 8.4

  “Safety and effectiveness in pediatric patients have not been established.”

• 👴 Older adultsUse with caution

  Label: use with caution in older adults, usually starting at the low end of the dose range. FDA Avonex · 8.5

  “Clinical studies of AVONEX did not include sufficient numbers of patients aged 65 and over to determine whether they respond differently than younger patients.”

• ⚥ Females & males of reproductive potentialNo data

  The source for this drug has no section for this group.