Plegridy (Peginterferon Beta-1A (Rch))
Complete patient guide for uses, dosage, side effects, and safety information
Quick Facts
What Is Plegridy Used For?
Plegridy is a prescription medication designed to help manage relapsing forms of Multiple Sclerosis (MS). It is not established whether Plegridy is safe or effective for individuals under 18 or over 65 years of age.
Primary Uses
Plegridy is primarily used to treat relapsing forms of Multiple Sclerosis (MS), a condition where the immune system attacks the protective myelin sheath surrounding nerve fibers.
How It Works
Although the exact mechanism is not fully understood, Plegridy is thought to reduce the immune system's inappropriate response against myelin.
Good to know: Plegridy is not considered addictive.
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How to Take Plegridy
Plegridy is administered through injections. It is important to follow the prescribed dosage and schedule to ensure effectiveness.
Dosage Instructions
The initial dose of Plegridy is 63 micrograms, followed by 94 micrograms two weeks later. The full dose of 125 micrograms is then administered every 14 days.
What If You Miss a Dose?
If you miss a dose, inject it as soon as you remember, but do not administer more than once in a 7-day period. Never double the dose to compensate for a missed one.
Important: Do not double dose to make up for a missed injection.
Available Tablet Strengths
Side Effects
Like all medications, this medicine can cause side effects. Most are mild and temporary, but some require medical attention.
Common Side Effects
These side effects occur relatively frequently and usually don’t require emergency care:
- headache
- muscle pain
- joint pain
- nausea
- vomiting
- itching
- injection site reactions
Seek immediate medical attention if you experience:
- seizures
- allergic reactions
- liver injury
- depression
- thoughts of self-harm or suicide
Impulse Control Issues
Patients may experience mood changes or impulse control issues, including thoughts of self-harm.
Important Warnings
There are several important considerations to keep in mind before using Plegridy.
Who Should Not Take Plegridy
Do not use Plegridy if you are allergic to interferon beta or peginterferon, are pregnant, or have severe depression or suicidal thoughts.
Medical Conditions to Discuss
Inform your doctor if you have any medical conditions such as liver problems, bleeding issues, heart conditions, or thyroid disorders.
Pregnancy and Breastfeeding
Do not use Plegridy if you are already pregnant. If you could become pregnant, effective contraception is required during treatment. Discuss breastfeeding with your doctor.
Elderly Patients With Dementia: Special caution is advised for elderly patients, particularly those with dementia.
Drug Interactions
Certain medications may interact with Plegridy, affecting its efficacy.
Grapefruit interaction: Consult your doctor before consuming grapefruit while taking Plegridy.
- medications for epilepsy
- medications for depression
Alcohol & Driving
Caution is advised regarding alcohol consumption and driving while on Plegridy.
Alcohol
Alcohol may increase the risk of liver injury; inform your doctor if you consume alcohol.
Driving and Operating Machinery
Be careful when driving or using machinery until you know how Plegridy affects you.
Storage
Store Plegridy in its original packaging in the refrigerator at 2°C to 8°C. It can be kept at room temperature (2°C to 25°C) for up to 30 days if protected from light.
Overdose Information
If you suspect an overdose, seek immediate medical attention. Contact the Poisons Information Centre or go to the nearest hospital.
Frequently Asked Questions
The positive effects of Plegridy are not seen immediately; they occur with long-term treatment.
There are no specific instructions regarding food interactions with Plegridy.
Plegridy is not considered addictive.
Do not stop using Plegridy unless directed by your doctor.
Inform your doctor if you drink alcohol, as it may increase the risk of liver injury.
Weight gain is not specifically mentioned as a side effect of Plegridy.
Elderly patients should use Plegridy with caution, especially those with dementia.
Important Disclaimer
This information is intended for general educational purposes only and should not be considered medical advice. Always consult your healthcare provider or pharmacist before starting, stopping, or changing any medication.
If you think you may have a medical emergency, call your doctor or emergency services immediately.