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Infergen

interferon alfacon-1
Used for Hepatitis C
Used for Hepatitis C

Infergen (interferon alfacon-1) is an injectable medication that's used to treat hepatitis C. This medication is injected under the skin and is recommended to be used with ribavirin (Rebetol). Infergen (interferon alfacon-1) has been discontinued by the manufacturer and is no longer available in the United States.

Reviewed by:
reviewer
Ally Tsai, PharmD
reviewer
Cydnee Ng, PharmD
Last reviewed on May 30, 2022
BasicsFAQsInteractionsAlternativesPricesMedicare
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What is Infergen (interferon alfacon-1)?

What is Infergen (interferon alfacon-1) used for?

  • Chronic (long-term) hepatitis C infection

How Infergen (interferon alfacon-1) works

Drug Facts

Common BrandsInfergen (brand no longer available)
Drug ClassBiologic
Controlled Substance ClassificationNot a controlled medication
Generic StatusNo lower-cost generic available
AvailabilityDiscontinued
faqs

Frequently asked questions about Infergen (interferon alfacon-1)

What is Infergen (interferon alfacon-1)?
Infergen (interferon alfacon-1) is a biologic medication used for the treatment of chronic (long-term) hepatitis C infection. This medication is a man-made protein called interferon. Interferons work by attaching to infected and nearby cells in the body. Then, they signal these cells to produce proteins that can prevent the virus from growing. Infergen (interferon alfacon-1) works by specifically targeting hepatitis C viruses and stopping their growth.
Is Infergen (interferon alfacon-1) still available?
No, Infergen (interferon alfacon-1) has been discontinued as of 2013 and is no longer available in the United States.
Why was Infergen (interferon alfacon-1) discontinued?
It's not clear why Infergen (interferon alfacon-1) was discontinued by its manufacturer, Kadmon, which is a Sanofi company. The U.S. FDA hasn't listed any reasons for its discontinuation.
What other medications can I use instead of Infergen (interferon alfacon-1)?
There are many different factors that a provider must consider in choosing the right hepatitis C medication for you, such as the type of virus, your medical history, and the presence of any liver problems. An alternative interferon medication for hepatitis C is Pegasys (peginterferon alfa-2a), which is typically injected under the skin once weekly. Additionally, hepatitis C medications called direct-acting antiviral therapies (DAATs) are available that are taken by mouth. DAATs include Harvoni (ledipasvir / sofosbuvir), Epclusa (sofosbuvir / velpatasvir), and Mavyret (glecaprevir / pibrentasvir). These medications have a 95% success rate in curing people with hepatitis C, but they might not be right for everyone. Talk with your provider to determine which hepatitis C treatment is best for you.
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interactions

Interactions between Infergen (interferon alfacon-1) and other drugs

Infergen (interferon alfacon-1) may interact with certain medications or supplements. Always let your doctor and pharmacist know about any other medications or supplements (including prescribed and over-the-counter medications, vitamins, and dietary or herbal supplements) that you are currently taking. The list below does not include all possible drug interactions with Infergen (interferon alfacon-1). Please note that only the generic name of each medication is listed below.

Using this medicine with any of the following medicines is not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take.

alternatives

What are alternatives to Infergen (interferon alfacon-1)?

There are a number of medications that your doctor can prescribe in place of Infergen (interferon alfacon-1). Compare a few possible alternatives below.
Infergen (interferon alfacon-1)
Used for:

  • Chronic (long-term) hepatitis C infection

View Prices
Pegasys (peginterferon alfa-2a)
Used for:

  • Long-term hepatitis C in people ages 5 years and older (in combination with other medications)

  • Long-term hepatitis B in people ages 3 years and older

$4442.86 Lowest GoodRx priceView Prices
Mavyret (glecaprevir / pibrentasvir)
Used for:

  • Chronic (long-term) hepatitis C genotype 1, 2, 3, 4, 5, or 6 infection in certain people age 3 years and older

  • Hepatitis C genotype 1 infection in people age 3 years and older who were previously treated with an NS5A inhibitor or an HCV protease inhibitor (not both)

$12851.07 Lowest GoodRx priceView Prices

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