Fremanezumab is a medicine used to prevent chronic migraines, which can sometimes affect vision and eye health.
| Drug class | CGRP Antibody |
|---|---|
| Type | Single |
| Forms | SC Injection |
| Common strength | 225 mg |
| Common Indian brands | Ajovy |
| Prescription status | Prescription |
What Fremanezumab is used for
Fremanezumab is a specialized medicine primarily used for:
- Prevention of chronic migraine.
While migraines are often thought of as just severe headaches, chronic migraines can significantly impact a person’s quality of life and may sometimes present with visual disturbances or affect eye comfort. This medication helps reduce the frequency and severity of these debilitating headaches.
How it works
Fremanezumab works by targeting and blocking a specific protein in the body called Calcitonin Gene-Related Peptide (CGRP). CGRP plays a key role in the pain pathways associated with migraines. By blocking CGRP, Fremanezumab helps to prevent migraine attacks before they start, rather than just treating the symptoms once a migraine has begun. This mechanism helps to reduce the frequency and intensity of chronic migraines, offering significant relief to patients.
How it’s used
Fremanezumab is administered as a subcutaneous (SC) injection. This means it is given as an injection just under the skin. Your doctor or a trained healthcare professional will show you how to administer the injection correctly, or they may administer it for you.
The dosing for Fremanezumab can be either:
- Monthly: One injection given once every month.
- Quarterly: One injection given once every three months.
Your ophthalmologist will determine the most suitable dosing schedule for you based on your specific condition and needs. It is crucial to follow your doctor’s instructions precisely regarding the frequency and method of administration. Do not change your dose or stop using the medicine without consulting your doctor.
Always follow your ophthalmologist’s exact instructions.
Brands available in India
- Ajovy
Brand availability and pricing vary; confirm with your pharmacist.
Good to know
Prescription eye medicine — use only as directed by a qualified ophthalmologist. This page is for general education and is not a substitute for professional medical advice, diagnosis or a prescription. Do not self-medicate or reuse an old prescription.
Precautions & side effects
Fremanezumab is generally well-tolerated by most patients. However, like all medicines, it’s important to be aware of certain precautions:
- Prescription Medicine: This is a prescription eye medicine. It must only be used as directed by a qualified ophthalmologist. Never self-medicate or use an old prescription.
- General Education: This page provides general education and is not a substitute for professional medical advice, diagnosis, or a prescription. Always consult your doctor for personalized guidance.
- Reporting Concerns: If you experience any unusual symptoms or side effects after taking Fremanezumab, please inform your doctor immediately.
Your doctor will assess your overall health and medical history to ensure Fremanezumab is the right treatment for you and will monitor your progress throughout the treatment.
Understanding Chronic Migraine and Your Eyes
Chronic migraine is a severe type of headache that occurs frequently, often for 15 or more days a month, for at least three months. Unlike a typical headache, migraines are often accompanied by other symptoms such as throbbing pain, sensitivity to light and sound, nausea, and sometimes visual disturbances like flashing lights or blind spots (known as aura). While Fremanezumab is primarily for migraine prevention, it’s important to understand that chronic migraines can indirectly affect your eye health and comfort. The intense pain and associated symptoms can lead to eye strain, light sensitivity (photophobia), and general discomfort around the eyes. By effectively preventing chronic migraines, Fremanezumab can help improve your overall well-being, including reducing the impact of migraine-related symptoms on your eyes.
At Pristine Eye Hospitals, we understand the intricate connection between neurological conditions like migraine and their potential impact on ocular health. Our neuro-ophthalmology specialists work to provide comprehensive care, ensuring that conditions affecting both the brain and eyes are managed effectively. Fremanezumab, as a CGRP antibody, represents a significant advancement in the preventive treatment of chronic migraines, offering a new ray of hope for patients seeking relief from this debilitating condition.
Administering Injections Safely and Hygienically
Fremanezumab is given as a subcutaneous injection, which means it is injected just under the skin. While your doctor or a trained healthcare professional will either administer the injection or provide thorough training on how to do it yourself, maintaining proper hygiene is paramount. Always wash your hands thoroughly with soap and water before preparing or administering the injection. Use a fresh, sterile needle and syringe for each injection. Follow the specific instructions provided by your doctor regarding the injection site (e.g., abdomen, thigh, upper arm) and how to rotate sites to prevent skin irritation. Never reuse needles or syringes. After administering the injection, dispose of the used needle and syringe in a puncture-resistant container (sharps container) as advised by your healthcare provider or local regulations. Proper disposal is crucial to prevent accidental needle sticks and ensure community safety. If you are unsure about any step, do not hesitate to ask your doctor or nurse for clarification.
General Advice and When to Seek Help
Living with chronic migraine can be challenging, but effective treatments like Fremanezumab can make a significant difference. Beyond medication, maintaining a healthy lifestyle can also support your treatment. This includes getting adequate sleep, managing stress, staying hydrated, and identifying and avoiding personal migraine triggers (such as certain foods, smells, or environmental factors). Keep a migraine diary to track your attacks, their severity, and any potential triggers; this information can be very helpful for your doctor in managing your treatment plan.
It is crucial to attend all your scheduled follow-up appointments with your ophthalmologist. These visits allow your doctor to monitor your progress, assess the effectiveness of Fremanezumab, and address any concerns or side effects you might be experiencing. If you notice any new or worsening symptoms, experience severe side effects, or have any questions about your treatment, contact Pristine Eye Hospitals immediately. Remember, this medication is part of a comprehensive treatment plan, and open communication with your healthcare team is key to achieving the best possible outcomes for your chronic migraine prevention and overall eye health.
Frequently asked questions
What is Fremanezumab used for?
Fremanezumab is used for the prevention of chronic migraine. While primarily for migraine, it can help reduce the impact of migraine-related symptoms on your eyes.
How does Fremanezumab work?
Fremanezumab works by blocking a protein called CGRP (Calcitonin Gene-Related Peptide), which is involved in migraine pain pathways. By blocking CGRP, it helps prevent migraine attacks.
What are the common Indian brands for Fremanezumab?
In India, Fremanezumab is available under the brand name Ajovy.
How is Fremanezumab administered?
Fremanezumab is given as a subcutaneous (SC) injection, which means it is injected just under the skin. It can be administered monthly or quarterly, as directed by your doctor.
Do I need a prescription for Fremanezumab?
Yes, Fremanezumab is a prescription medicine. It must only be used as directed by a qualified ophthalmologist.
What are the key precautions to take with Fremanezumab?
Fremanezumab is generally well-tolerated. The main precaution is to use it strictly as prescribed by your ophthalmologist. Do not self-medicate. This page is for general education and not a substitute for professional medical advice.
References
- Fremanezumab-vfrm Injection: MedlinePlus Drug Information
- Safety and tolerability of fremanezumab in patients with episodic and chronic migraine: a pooled analysis of phase 3 studies – PMC
- Eye health information – American Academy of Ophthalmology
- Learn about eye health – National Eye Institute (NIH)
- Blindness and vision impairment – World Health Organization
Medically reviewed by Dr. C Jagadesh Reddy, Chief Surgeon: Cornea, Cataract and Refractive Surgery — last reviewed 2026-07-28.
This page is for general education only and is not a substitute for professional medical advice, diagnosis or treatment. Never self-medicate or reuse an old prescription. Always consult a qualified ophthalmologist before starting, changing or stopping any eye medicine.