INTERFERON BETA-1A
Background and Date of Approval
Interferon beta-1a received approval from the US Food and Drug Administration (FDA) on 17 May 1996 for the treatment of relapsing forms of multiple sclerosis.
Uses
This medication is utilized to treat relapsing forms of multiple sclerosis, an autoimmune condition impacting the central nervous system (brain and spinal cord). It works by reducing the frequency and intensity of relapses and slowing the progression of disability.
How is it administered?
Serious side effects of this medication include allergic reactions like swelling of the face, lips, or tongue, difficulty breathing, and rash. Depression, liver problems indicated by jaundice, itching, nausea, vomiting, and easy bruising are also serious concerns. Common side effects encompass flu-like symptoms, loss of appetite, weakness, difficulty sleeping, runny nose, diarrhea, numbness or tingling of the skin, increased sweating, muscle and joint pain, injection site pain, bruising, and redness. Changes in blood cell and liver function values can also occur.
Side Effects
It is not recommended to use Interferon beta-1a in children and adolescents due to limited data on its effectiveness and safety in this age group, especially in children below 10 years old. Inform your health care provider if you are allergic to interferon beta-1a or any of its ingredients, have severe depression, suicidal thoughts, uncontrolled epilepsy, serious kidney or liver problems, low white blood cell or platelet count, heart problems, or irritation at the injection site. Report any mood changes, suicidal thoughts, or worsening of existing conditions to your doctor. Transparent communication with your doctor about your medical history and medications is crucial for the safe use of Interferon beta-1a.
Warnings
Inform your doctor about any prescribed medications, over-the-counter medicines, nutritional or vitamin supplements, and herbal products you take or have taken before the treatment. Certain medications may interact with interferon beta-1a and cause undesirable side effects, particularly those for epilepsy or depression. Interferon beta-1a could interact with or be influenced by other drugs, including those obtained without a prescription. Inject at a different site each time to avoid the risk of skin and muscle irritation. Do not use it on a bruised, sore, infected, or wounded part of the skin. The injection should be kept at room temperature for half an hour before use. Wash your hands thoroughly with soap and water and dry them. Keep sticking plasters and alcohol wipes handy in case you need them. Your doctor will tell you how long you must keep using Interferon beta-1a.
Precautions
Inform your doctor about any prescribed medications, over-the-counter medicines, nutritional or vitamin supplements, and herbal products you take or have taken before the treatment. Certain medications may interact with interferon beta-1a and cause undesirable side effects, particularly those for epilepsy or depression. Interferon beta-1a could interact with or be influenced by other drugs, including those obtained without a prescription. Inject at a different site each time to avoid the risk of skin and muscle irritation. Do not use it on a bruised, sore, infected, or wounded part of the skin. The injection should be kept at room temperature for half an hour before use. Wash your hands thoroughly with soap and water and dry them. Keep sticking plasters and alcohol wipes handy in case you need them. Your doctor will tell you how long you must keep using Interferon beta-1a.
Word of Advice
During Interferon beta-1a treatment, your doctor may start with a lower dose during the first week to help reduce flu-like symptoms, followed by a gradual increase as advised. Take the medicine exactly as prescribed and maintain a consistent dosing schedule, even if you begin to feel better.
If you accidentally use more than the prescribed dose, contact your doctor or pharmacist immediately. If you miss a dose, follow your doctor’s instructions regarding when to take the next injection, and never double the dose to make up for a missed one. Your doctor will regularly monitor your liver function, thyroid function, and blood cell counts throughout treatment. Report any sudden changes in mood or thoughts of suicide to your doctor immediately so that appropriate support and treatment can be provided.
References
FUJIFILM Diosynth Biotechnologies, Electronic medicines compendium (EMC), [Revised on Jun 2023] [Accessed on 30th Sept 2023] https://www.medicines.org.uk/emc/product/886/pil US Food and Drug Administration (FDA), [Revised on Feb 2012] [Accessed on 28th Sep 2023] https://www.accessdata.fda.gov/drugsatfda_docs/label/2012/103628s5189lbl.pdf
Frequently Asked Questions
What should I do if I am undergoing blood tests while on Interferon beta-1a treatment?
Interferon beta-1a may influence changes in the laboratory values of blood cells (RBC, WBC, Platelets) and liver functions. It's essential to inform the person conducting the tests that you are undergoing treatment with Interferon beta-1a to ensure accurate results.
How should interferon beta-1a be stored?
Interferon beta-1a should be refrigerated between 2 °C and 8 °C. Do not freeze. If a refrigerator is not available, it may be stored between 2 °C and 25 °C for up to 30 days and away from heat and light.
Does Interferon beta-1a are indicated for children?
No, Interferon beta-1a is not recommended for children and adolescents under 10 years because the safety of this medication is not established for them.
Can Interferon beta-1a lead to kidney disease?
Interferon beta-1a may cause blood clots in the small blood vessels, which could affect the kidney. This may happen several weeks to several years after starting Interferon beta-1a. The doctor may monitor your blood pressure, blood platelet count, and kidney functioning during the treatment.
When is the best time to take interferon beta?
The injections should be spaced at least 48 hours apart, so it is best to inject your medication around the same time of day on each of your injection days. The best time to inject this medication is in the late afternoon or evening.