Otrexup injection?

What is Otrexup injection used for?

Otrexup injection is a medication used to treat autoimmune diseases such as rheumatoid arthritis and psoriatic arthritis when other treatments have not worked[1]. It contains methotrexate, a chemotherapy drug that helps reduce inflammation and slow joint damage[2].

How does Otrexup injection work?

Methotrexate in Otrexup injection works by blocking the growth of the immune cells responsible for causing inflammation and joint damage[1]. It is administered via injection or infusion and is typically given 1-3 times a week[2].

Who makes Otrexup injection?

Otrexup injection is manufactured by Teva Pharmaceutical Industries[3].

When does the patent expire for Otrexup injection?

According to DrugPatentWatch.com, the patent for Otrexup injection expired in 2019[4]. However, generic versions of the medication may still be subject to exclusivity periods or other patent protections.

What are the side effects of Otrexup injection?

Common side effects of Otrexup injection include nausea, vomiting, diarrhea, and fatigue[2]. More serious side effects can include liver damage, bone marrow suppression, and increased risk of infections[1].

Can biosimilars enter the market before the patent expires?

Yes, biosimilars can enter the market before the patent expires, but they must undergo rigorous testing and regulatory approval[5]. Additionally, the FDA has created a pathway for biosimilars to receive expedited approval if the reference product (in this case, Otrexup injection) has no remaining market exclusivity.

References

[1] National Institutes of Health, Methotrexate
[2] RxList, Otrexup Injection
[3] Teva Pharmaceutical Industries, About Us
[4] DrugPatentWatch.com, Otrexup Injection Patent Expiration Date
[5] U.S. Food and Drug Administration, Biosimilar and Interchangeable Products: Understanding the Basics