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Home > Drug Category > Immunosuppressive Agents > Betaseron and Equivalent

Betaseron Information

Betaseron (Interferon Beta-1B) is currently used for the treatment of various relapsing forms of multiple sclerosis in adults. This includes patients with clinically isolated syndrome (a first clinical episode that may suggest multiple sclerosis), relapsing-remitting disease, and active secondary progressive disease, where patients experience a steady worsening of symptoms alongside occasional relapses. The active ingredient is interferon beta-1b, which belongs to the class of medications known as interferons. It is a purified, sterile, lyophilized protein product produced by recombinant DNA techniques using a laboratory-altered strain of Escherichia coli. While the precise mechanism of action in multiple sclerosis is not fully established, interferon beta-1b appears to modulate the body's immune response. It likely reduces the production of pro-inflammatory cytokines while increasing the production of anti-inflammatory markers, such as interleukin-10 (IL-10). Additionally, the drug is thought to inhibit T-cell migration across the blood-brain barrier, preventing these immune cells from entering the central nervous system and causing damage. Altering these signaling pathways helps to suppress the inflammatory processes that lead to nerve damage.

Multiple sclerosis is an autoimmune condition characterized by the immune system mistakenly attacking the myelin sheath, which insulates nerve fibers in the brain and spinal cord. When this myelin is damaged (demyelination), nerve signals are slowed or blocked, resulting in a wide range of neurological symptoms, from vision loss to mobility issues. Betaseron helps by reducing this aggressive immune response. By reducing the frequency and severity of inflammatory attacks or relapses, the medication is likely to decrease the formation of new lesions and may slow the progression of physical disability over time. It essentially acts as a regulator, preventing the immune system from causing further structural damage to the central nervous system.

Betaseron Side Effects

Some common side effects of this medication include flu-like symptoms such as fever, chills, sweating, muscle aches, and tiredness, as well as injection site reactions such as skin irritation, swelling, pain, bruising, itching, or bleeding. Contact your doctor if these common side effects persist or worsen.

Stop taking this medicine and contact your doctor immediately if you experience any serious side effects, including the following:
• Allergic reactions such as breathing difficulties, body itching, body rash, skin blistering, swelling of the face, mouth, tongue, lips, or throat;
• Anemia (low red blood cells) with symptoms like dizziness, pale skin, unusual tiredness or weakness, shortness of breath;
• Depression with symptoms like poor concentration, changes in weight, changes in sleep, decreased interest in activities, thoughts of suicide;
• Heart problems with symptoms like swollen ankles, shortness of breath, tightness in the chest, decreased ability to exercise, increased heart rate;
• Kidney problems with symptoms like increased urination at night, decreased urine production, blood in the urine, and a change in urine color;
• Liver problems with symptoms like yellow eyes or skin, abdominal pain, dark urine or pale stools, easy bruising;
• Pancreatitis with symptoms like abdominal pain on the upper left side, back pain, nausea, fever, chills, rapid heartbeat, swollen abdomen;
• Seizures;
• Unusual infections with symptoms that may include fever or chills, severe diarrhea, shortness of breath, prolonged dizziness, headache, stiff neck, loss of voice, weight loss, or listlessness

Inform your doctor about any other side effects you notice that are not listed here.

Betaseron Precautions

Do not use this medicine if you are allergic to interferon beta-1b or any other ingredients in Betaseron. Before using this medication, ensure you inform your doctor about any medical conditions you previously or currently have, including the following:
• Blood count disorders such as low white cell counts;
• Depression;
• Heart disease;
• Kidney disease;
• Liver disease;
• Pancreas problems, such as pancreatitis;
• Seizure disorders;
• Thyroid problems

Consult your doctor before using this medication during pregnancy or if you desire to get pregnant while taking this medication. Some neurologists consider interferon beta among the safer multiple sclerosis therapies for use during pregnancy, provided the benefits outweigh the risks, as it is a large protein molecule that does not readily cross the placenta in significant amounts. It is not known for certain if this medication passes into human milk. However, because interferon beta-1b is a large protein, it is likely degraded in the infant's gastrointestinal tract. Therefore, consult your doctor before taking this medication while breastfeeding. The safety and effectiveness of using this medication have not been established for children and adolescents under 18 years of age.

Because Betaseron is taxing on the liver, combining it with other hepatotoxic drugs (or heavy alcohol use) significantly increases the risk of liver failure. These include common medications such as acetaminophen (at high doses), certain antifungals, and newer agents such as pretomanid and riluzole. Therefore, inform your healthcare provider about all the medicines, including herbal supplements, that you are taking before starting interferon beta-1b to prevent potential drug interactions. This medication is typically given by injection under your skin (subcutaneous injection) every other day. Your doctor will determine the appropriate dose of this medication for you. If your healthcare provider feels that you or someone else may give you the injections, then you or the other person should be trained by your healthcare provider in how to give the injection safely. Rotate injection sites among the arms, abdomen, and thighs to protect the skin from local damage. Administering the dose at bedtime likely helps mitigate systemic side effects. Check out the leaflets in the medication pack for details on how to prepare this medication. Store the unused Betaject kit at room temperature and discard after use.

Do I need a prescription to order Betaseron?

Yes, a prescription is required from your physician to order Betaseron.