Purple Book product · Reference 351(a)
Intron A
interferon alfa-2b
At a glance
Not listed
Approved
Reference 351(a)
License type
Disc
Marketing
No
Patents listed
Key dates
Orphan exclusivity ends
7-year orphan-drug exclusivity window.
Nov 21, 1995
31 yr ago
Today
Pharmaceutical detail
Strength
25MIU
Dosage form
Injection
Route
Intralesional, Intramuscular, Subcutaneous
Presentation
Multi-Dose Vial
Center
CDER
License number
0002
Product number
011
Submission type
Supplement
Supplement number
Not listed
Change type
Not listed
Reference product family
View full familyThis is the reference (originator) product. Biosimilars and interchangeables referencing it are listed below.
- 1986Intron AReference 351(a)
interferon alfa-2b · Merck Sharp & Dohme LLC
- 1986Intron AReference 351(a)
interferon alfa-2b · Merck Sharp & Dohme LLC
- 1986Intron AReference 351(a)
interferon alfa-2b · Merck Sharp & Dohme LLC
- 1986Intron AReference 351(a)
interferon alfa-2b · Merck Sharp & Dohme LLC
- —Intron AReference 351(a)
interferon alfa-2b · Merck Sharp & Dohme LLC
- —Intron AReference 351(a)
interferon alfa-2b · Merck Sharp & Dohme LLC
- —Intron AReference 351(a)
interferon alfa-2b · Merck Sharp & Dohme LLC
- —Intron AReference 351(a)
interferon alfa-2b · Merck Sharp & Dohme LLC
- —Intron AReference 351(a)
interferon alfa-2b · Merck Sharp & Dohme LLC
- —Intron AReference 351(a)
interferon alfa-2b · Merck Sharp & Dohme LLC
- —Intron AReference 351(a)
interferon alfa-2b · Merck Sharp & Dohme LLC
- —Intron AReference 351(a)
interferon alfa-2b · Merck Sharp & Dohme LLC
Patent list
No patent-list records were published for this product. The Purple Book patent list reflects the statutory patent exchange under the BPCIA and is not exhaustive.
Taxonomy and ontology
11 termscenter
Center for Drug Evaluation and Research
center · CDER
application pathway
Biologics License Application
blaNumber · BLA
license type
351(a)
blaType · 351(a)
application pathway
Section 351(a) Biologic
blaType · 351(a)
product role
Reference or Standalone Biologic
blaType · Reference product
marketing status
Discontinued
marketingStatus · Disc
licensure status
Voluntarily Revoked
licensure · Voluntarily Revoked
dosage form
Injection
dosageForm · Injection
source kind
Monthly Download
sourceKind · monthly_download
patent status
No Patent List Provided
patentListProvided · No patent list
- Food and Drug Administrationparent ofCenter for Drug Evaluation and Research
- Food and Drug Administrationsource forMonthly Download
- Biologics License Applicationparent ofSection 351(a) Biologic
- Biologics License Applicationparent ofSection 351(k) Biosimilar or Interchangeable
- Section 351(a) Biologicmaps to351(a)
- 351(a)classifiesReference or Standalone Biologic
Source provenance
