Sirolimus (Intravitreal) is a powerful medicine given as an injection into the eye to treat certain types of eye inflammation.
| Drug class | mTOR Inhibitor (Intravitreal) |
|---|---|
| Type | Single |
| Forms | Intravitreal Injection |
| Common strength | 440 mcg |
| Prescription status | Prescription (hospital use) |
What Sirolimus (Intravitreal) is used for
Sirolimus (Intravitreal) is a specialized medicine used to treat specific inflammatory conditions inside the eye. These conditions are characterized by inflammation that affects the back part of the eye or the middle layer of the eye, but are not caused by infections.
- Non-infectious posterior uveitis
- Non-infectious intermediate uveitis
Uveitis is a general term for inflammation of the uvea, the middle layer of the eye that includes the iris, ciliary body, and choroid. When this inflammation is ‘non-infectious’, it means it’s not caused by bacteria, viruses, or fungi, but rather by the body’s own immune system acting up. Posterior uveitis affects the back part of the eye, while intermediate uveitis affects the middle part. Both can lead to vision problems if not properly managed.
By treating these conditions, Sirolimus (Intravitreal) aims to reduce inflammation, protect eye tissues, and help preserve your vision.
How it works
Sirolimus (Intravitreal) belongs to a category of medicines called immunomodulators, specifically an mTOR inhibitor. To understand how it works, it’s helpful to know that inflammation in the eye, especially in conditions like non-infectious uveitis, is often caused by an overactive immune system. Your immune system, which normally protects your body from harmful invaders, can sometimes mistakenly attack your own tissues, leading to inflammation and damage.
This medicine works by targeting a specific pathway within your immune cells called the mTOR pathway. By inhibiting or blocking this pathway, Sirolimus helps to suppress the local immune activity directly within your eye. This means it calms down the immune cells that are causing the inflammation, reducing swelling, redness, and damage to the delicate structures of your eye. Because it acts locally within the eye, it helps to control the inflammation where it is most needed, aiming to protect your vision and prevent further complications from the uveitis.
In simpler terms, Sirolimus (Intravitreal) acts like a ‘dimmer switch’ for the immune system inside your eye, turning down the excessive immune response that is causing the inflammation, without completely shutting down your body’s overall protective immune functions.
How it’s used
Sirolimus (Intravitreal) is administered as an injection directly into your eye. This procedure is always performed by a specialist doctor in a hospital or clinic setting. It is never for self-use at home.
Before the injection, your eye will be numbed with special eye drops to ensure you are comfortable. The doctor will then carefully inject the medicine into the vitreous, which is the jelly-like substance that fills the inside of your eye. You might feel a slight pressure during the injection, but it should not be painful.
The typical dosing pattern involves repeating the injection approximately every two months. Your eye specialist will determine the exact frequency and duration of your treatment based on your specific condition, how you respond to the medicine, and regular monitoring of your eye health. It is very important to attend all your scheduled appointments for these injections and follow-up examinations to ensure the treatment is effective and safe.
After the injection, your doctor or nurse will provide you with specific instructions for post-injection care. This may include avoiding rubbing your eye, using prescribed eye drops, and knowing what symptoms to look out for. Always follow these instructions carefully.
Always follow your ophthalmologist’s exact instructions.
Brands in India
Hospital-prepared or not marketed as a retail brand in India.
Please note
Powerful medicine that suppresses the immune system. Screening for tuberculosis and hepatitis is usually required before starting, and it raises the risk of infection. Used only under specialist supervision with regular monitoring. This is given only by specialists in a hospital or clinic setting and is never for self-use.
Precautions & side effects
Sirolimus (Intravitreal) is a powerful medicine that requires careful consideration and specialist supervision due to its nature as an immune system suppressor. Here are important precautions and warnings you should be aware of:
- Specialist Use Only: This medicine is exclusively for use by eye specialists in a hospital or clinic environment. It is never to be self-administered.
- Immune System Suppression: Sirolimus works by suppressing the immune system within the eye. While this is beneficial for treating inflammation, it means your body’s ability to fight off infections might be reduced.
- Screening for Infections: Before starting treatment with Sirolimus (Intravitreal), your doctor will usually require screening tests for certain infections, such as tuberculosis and hepatitis. This is crucial because suppressing the immune system could potentially reactivate these dormant infections.
- Increased Risk of Infection: Due to its immune-suppressing effects, there is an increased risk of developing infections while on this treatment. It is important to report any signs of infection (e.g., fever, chills, unusual tiredness, new or worsening pain, redness, or discharge from the eye) to your doctor immediately.
- Regular Monitoring: Treatment with Sirolimus (Intravitreal) requires regular monitoring by your eye specialist. This includes frequent eye examinations to assess the effectiveness of the treatment and to check for any potential side effects or complications. Your doctor may also order blood tests or other investigations as needed.
- Report All Medical Conditions: Always inform your doctor about all your medical conditions, allergies, and any other medicines you are taking (including over-the-counter drugs, supplements, and herbal remedies) before starting this treatment.
- Pregnancy and Breastfeeding: If you are pregnant, planning to become pregnant, or breastfeeding, discuss this with your doctor. The use of powerful medicines during these times requires careful consideration.
- Driving and Operating Machinery: After an eye injection, your vision might be temporarily blurred or affected. It is advisable to avoid driving or operating heavy machinery until your vision has returned to normal.
Your doctor will discuss all potential risks and benefits with you before starting this treatment and will guide you through the process with utmost care.
Understanding Uveitis and Its Impact
Uveitis is a serious eye condition that involves inflammation of the uvea, the middle layer of your eye. The uvea is vital because it contains many blood vessels that nourish the retina, the light-sensitive tissue at the back of your eye. When the uvea becomes inflamed, it can affect your vision and, if left untreated, can lead to serious complications like glaucoma, cataracts, or even permanent vision loss.
There are different types of uveitis depending on which part of the uvea is affected. Sirolimus (Intravitreal) is specifically used for non-infectious posterior and intermediate uveitis. ‘Non-infectious’ means that the inflammation is not caused by germs like bacteria or viruses, but rather by your body’s own immune system mistakenly attacking healthy eye tissue. This type of uveitis can be linked to other autoimmune diseases in the body, or it can occur on its own without a clear cause.
Symptoms of uveitis can vary but often include eye pain, redness, light sensitivity (photophobia), blurred vision, and floaters (small spots or lines that seem to drift across your vision). If you experience any of these symptoms, it is crucial to see an eye specialist immediately. Early diagnosis and treatment are key to managing uveitis effectively and preserving your vision.
General Eye Care and Hygiene
Maintaining good eye hygiene is always important, especially when you are undergoing treatment for an eye condition. While Sirolimus (Intravitreal) is an injection and not an eye drop you administer yourself, general eye care practices contribute to your overall eye health and can help prevent complications.
- Hand Hygiene: Always wash your hands thoroughly with soap and water before touching your eyes or applying any eye drops (if prescribed by your doctor for post-injection care). This helps prevent the introduction of germs into your eyes.
- Avoid Rubbing Eyes: Try to avoid rubbing your eyes, especially after an injection. Rubbing can irritate the eye and potentially introduce infection.
- Cleanliness: Keep your face and eyelids clean. You can gently wipe your eyelids with a clean, damp cloth if needed.
- Cosmetics: If you use eye makeup, ensure it is fresh and not expired. Avoid sharing eye makeup. It’s often recommended to avoid eye makeup for a few days after an eye injection. Your doctor will advise you on this.
- Protective Eyewear: If you work in dusty environments or are exposed to irritants, consider wearing protective eyewear.
- Follow Doctor’s Instructions: Always adhere strictly to any post-injection care instructions given by your eye specialist, including the use of any prescribed eye drops or ointments.
When to Seek Medical Help
While Sirolimus (Intravitreal) is administered under strict medical supervision, it is vital for you to be aware of when to seek immediate medical attention. Your eye specialist will provide specific instructions, but here are some general guidelines:
- Sudden Vision Changes: Any sudden decrease in vision, new floaters, flashes of light, or a curtain-like shadow over your vision should be reported immediately.
- Severe Eye Pain: If you experience severe or worsening eye pain that is not relieved by prescribed pain medication.
- Increased Redness or Discharge: Significant increase in eye redness, swelling, or any new discharge (pus) from the eye could indicate an infection.
- Light Sensitivity: New or worsening sensitivity to light.
- Signs of Systemic Infection: Since Sirolimus can suppress the immune system, be vigilant for signs of a general body infection such as fever, chills, unusual tiredness, body aches, or a persistent cough.
- Allergic Reaction: Although rare, if you experience symptoms of an allergic reaction such as rash, itching, severe dizziness, or trouble breathing, seek emergency medical care.
Always keep your eye specialist’s contact information handy and do not hesitate to call them if you have any concerns or experience any unusual symptoms after your injection. Regular follow-up appointments are crucial to monitor your progress and ensure the long-term health of your eyes.
Frequently asked questions
What is Sirolimus (Intravitreal) used for?
Sirolimus (Intravitreal) is a specialized medicine used to treat specific types of eye inflammation called non-infectious posterior uveitis and non-infectious intermediate uveitis. These are conditions where the immune system causes inflammation in the back or middle part of the eye, not due to an infection.
How does Sirolimus (Intravitreal) work?
Sirolimus (Intravitreal) works by suppressing the immune system's activity directly within the eye. It is an mTOR inhibitor, which means it blocks a specific pathway in immune cells, thereby reducing the inflammation that causes damage in conditions like uveitis.
What are the common Indian brands for Sirolimus (Intravitreal)?
Sirolimus (Intravitreal) is typically prepared by hospitals for individual patient use and is not available under specific retail brand names in India.
How is Sirolimus (Intravitreal) administered?
Sirolimus (Intravitreal) is given as an injection directly into the eye by an eye specialist in a hospital or clinic setting. It is usually repeated approximately every two months, as determined by your doctor.
Is a prescription needed for Sirolimus (Intravitreal)?
Yes, Sirolimus (Intravitreal) is a prescription-only medicine and is used only in a hospital or clinic setting under the direct supervision of a specialist.
What are the key precautions to take with Sirolimus (Intravitreal)?
Sirolimus (Intravitreal) is a powerful medicine that suppresses the immune system. Key precautions include requiring specialist use and supervision, screening for tuberculosis and hepatitis before starting treatment, and being aware of an increased risk of infection. Regular monitoring by your eye specialist is also essential.
References
- Eye health – MedlinePlus (US National Library of Medicine)
- Eye health information – American Academy of Ophthalmology
- Learn about eye health – National Eye Institute (NIH)
- Blindness and vision impairment – World Health Organization
- StatPearls – NCBI Bookshelf
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.