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Avonex Patient Information including If I Miss a Dose
In this Article
- What is interferon beta-1a (Avonex)?
- What are the possible side effects of interferon beta-1a (Avonex)?
- What is the most important information I should know about interferon beta-1a (Avonex)?
- What should I discuss with my healthcare provider before using interferon beta-1a (Avonex)?
- How should I use interferon beta-1a (Avonex)?
- What happens if I miss a dose (Avonex)?
- What happens if I overdose (Avonex)?
- What should I avoid while using interferon beta-1a (Avonex)?
- What other drugs will affect interferon beta-1a (Avonex)?
- Where can I get more information?
What happens if I miss a dose (Avonex)?
Call your doctor for instructions if you miss a dose of this medication. Your injections should be at least 48 hours apart. Do not use interferon beta-1a injections 2 days in a row.
What happens if I overdose (Avonex)?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
What should I avoid while using interferon beta-1a (Avonex)?
Avoid drinking alcohol. It may increase your risk of liver damage.
Avoid being near people who are sick or have infections. Tell your doctor at once if you develop signs of infection.
What other drugs will affect interferon beta-1a (Avonex)?
Interferon beta-1a can harm your liver. This effect is increased when you also use other medicines harmful to the liver. Many other drugs (including some over-the-counter medicines) can be harmful to the liver, such as:
- acetaminophen (Tylenol);
- cancer medications;
- tuberculosis medications;
- birth control pills or hormone replacement therapy;
- methotrexate (Rheumatrex, Trexall);
- arthritis medications such as auranofin (Ridaura);
- an antibiotic;
- HIV/AIDS medications;
- cholesterol medications such atorvastatin (Lipitor), simvastatin (Zocor), and others;
- an ACE inhibitor such as benazepril (Lotensin), captopril (Capoten), lisinopril (Prinivil, Zestril), and others;
- an NSAID (non-steroidal anti-inflammatory drug) such as ibuprofen (Motrin, Advil), naproxen (Aleve, Naprosyn), indomethacin (Indocin), and others; or
- seizure medications such as carbamazepine (Carbatrol, Tegretol), phenytoin (Dilantin), or valproic acid (Depakene).
This list is not complete and other drugs may interact with interferon beta-1a. Tell your doctor about all medications you use. This includes prescription, over-the-counter, vitamin, and herbal products. Do not start a new medication without telling your doctor.
Where can I get more information?
Your doctor or pharmacist can provide more information about interferon beta-1a.
Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
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