Methotrexate Eye Injection: Uses, Brands & Dosage

Methotrexate is an immunomodulator medicine used to treat various non-infectious inflammatory eye conditions by suppressing the immune system.

Drug class	Systemic (Antimetabolite)
Type	Single
Forms	Tablet / Injection
Common strength	2.5 mg tablet; weekly injection
Common Indian brands	Folitrax, Methotrexate (multiple)
Prescription status	Prescription

What Methotrexate is used for

Methotrexate is a powerful medicine used to treat certain inflammatory conditions affecting the eyes. These conditions are often caused by an overactive immune system, which mistakenly attacks healthy tissues in the eye, leading to inflammation, pain, and potential vision problems. By calming this overactivity, Methotrexate helps to protect your eyes and preserve your vision.

Your eye specialist at Pristine Eye Hospitals may prescribe Methotrexate for conditions such as:

Non-infectious uveitis: This is an inflammation of the uvea, the middle layer of the eye, which can cause redness, pain, light sensitivity, and blurred vision. Non-infectious means it’s not caused by bacteria, viruses, or fungi.
Scleritis: This involves inflammation of the sclera, the white outer layer of your eyeball. It can cause severe pain, redness, and tenderness.
JIA-associated uveitis: This is a specific type of uveitis that occurs in children with Juvenile Idiopathic Arthritis (JIA), a form of childhood arthritis. It often requires careful management to prevent long-term eye damage.
Ocular inflammatory disease needing steroid-sparing therapy: In many inflammatory eye conditions, steroids are used to control inflammation. However, long-term steroid use can have side effects. Methotrexate is used as a ‘steroid-sparing’ agent, meaning it helps to reduce the amount of steroids needed, or even allows them to be stopped, while still keeping the inflammation under control.

By treating these conditions effectively, Methotrexate aims to reduce inflammation, relieve symptoms, prevent damage to your eyes, and improve your overall eye health.

How it works

Methotrexate belongs to a group of medicines called immunomodulators, specifically classified as a systemic antimetabolite. To understand how it works, it’s helpful to know that many eye inflammatory conditions are caused by your body’s own immune system becoming overactive and mistakenly attacking healthy eye tissues. This leads to inflammation, which can cause pain, redness, and damage.

Methotrexate works by suppressing this overactive immune system. It interferes with the growth of certain cells, particularly those involved in the immune response. By doing so, it calms down the inflammation in your eyes. This suppression of the immune system is carefully managed to reduce the harmful inflammation while still allowing your body to fight off infections.

A key benefit of Methotrexate is its role in ‘steroid-sparing therapy’. Often, strong steroid medications are used to control severe eye inflammation. While effective, long-term use of steroids can have significant side effects. By suppressing the immune system, Methotrexate allows your doctor to reduce the dose of steroids you need, or in some cases, even stop them altogether. This helps to manage your condition effectively while minimising the risks associated with prolonged steroid use. Essentially, it helps to bring your immune system back into balance, reducing inflammation and protecting your eyes from further damage.

How it’s used

Methotrexate is a medicine that requires very careful and precise use. It is available in two main forms: tablets and injections. Your eye specialist at Pristine Eye Hospitals will decide which form and strength is most suitable for your condition.

CRITICAL DOSING INFORMATION:

Methotrexate is taken ONCE A WEEK, not daily. This is extremely important. Taking it daily by mistake can be very dangerous and even fatal. Always double-check your prescription and instructions carefully.
If you are prescribed tablets, the usual strength is 2.5 mg. If you are prescribed injections, these are also administered weekly.
Your doctor will also prescribe folic acid supplementation. Folic acid should be taken on the days you are NOT taking Methotrexate. This helps to reduce some of the potential side effects of Methotrexate. Your doctor will provide specific instructions on how to take folic acid.
Always follow the exact instructions given by your eye specialist and pharmacist regarding the day and time to take your weekly dose. It can be helpful to mark the day on a calendar or set a reminder to ensure you take it correctly.
If you miss a dose, contact your doctor or the hospital immediately for advice. Do not take a double dose to make up for a missed one.

It is vital to understand that Methotrexate is a powerful medicine. Never adjust your dose or stop taking it without consulting your eye specialist. Regular follow-up appointments are essential to monitor your progress and ensure the medicine is working safely and effectively for you.

Always follow your ophthalmologist’s exact instructions.

Brands available in India

Folitrax
Methotrexate (multiple)

Brand availability and pricing vary; confirm with your pharmacist.

Please note

CRITICAL DOSING: taken ONCE A WEEK, never daily — daily dosing can be fatal. Requires regular blood counts and liver tests, folic acid on other days, and complete avoidance of alcohol. Must not be used in pregnancy. Specialist supervision essential.

Precautions & side effects

Methotrexate is a powerful medicine that requires careful monitoring and adherence to specific precautions to ensure your safety and the effectiveness of your treatment. Your eye specialist at Pristine Eye Hospitals will discuss all these points with you in detail.

Key Precautions and Important Warnings:

CRITICAL DOSING: ONCE A WEEK ONLY. This is the most important instruction. Methotrexate must be taken only ONCE A WEEK, never daily. Taking it daily by mistake can lead to severe, life-threatening side effects. Always confirm the day of the week you should take your dose and mark it clearly. If you are unsure, please ask your doctor or pharmacist immediately.
Regular Blood Tests: Because Methotrexate can affect your blood cells and liver, you will need to have regular blood counts and liver function tests. These tests are crucial to monitor your body’s response to the medicine and detect any potential side effects early. It is very important not to miss these appointments.
Folic Acid Supplementation: You will be prescribed folic acid to take on the days you are not taking Methotrexate. This helps to reduce certain side effects of the medicine. Make sure you understand exactly when and how to take your folic acid.
Alcohol Avoidance: It is absolutely essential to avoid alcohol completely while you are taking Methotrexate. Alcohol can significantly increase the risk of liver damage when combined with Methotrexate.
Pregnancy: Methotrexate is strictly contraindicated in pregnancy. It can cause serious harm to an unborn baby. If you are pregnant, planning to become pregnant, or breastfeeding, you must inform your doctor immediately. Effective contraception is necessary for both men and women during treatment and for a specified period after stopping the medicine. Discuss family planning with your doctor.
Infections: As Methotrexate suppresses your immune system, you may be more susceptible to infections. Report any signs of infection (like fever, sore throat, or unusual tiredness) to your doctor promptly.
Other Medicines: Always inform your doctor and pharmacist about all other medicines you are taking, including over-the-counter drugs, herbal remedies, and supplements. Some medicines can interact with Methotrexate.
Specialist Supervision: Treatment with Methotrexate requires close supervision by a specialist doctor experienced in its use. Do not self-medicate or change your dose without medical advice.

While Methotrexate is a powerful medicine, when used correctly and with proper monitoring, it can be very effective in managing your eye condition and improving your quality of life. Always communicate any concerns or unusual symptoms to your healthcare team at Pristine Eye Hospitals.

Understanding Inflammatory Eye Conditions

Many eye conditions, like uveitis and scleritis, fall under the umbrella of ‘inflammatory eye diseases’. These are not usually caused by infections but rather by your body’s own immune system mistakenly attacking healthy tissues within your eyes. Think of your immune system as your body’s defence force. In these conditions, this defence force becomes overactive and starts targeting your eyes, leading to inflammation. Inflammation is your body’s natural response to injury or irritation, but when it’s chronic and misdirected, it can cause redness, pain, swelling, blurred vision, and potentially long-term damage to your eye structures if not managed properly.

The goal of treatment for these conditions is to calm down this overactive immune response and reduce the inflammation. This helps to relieve your symptoms, protect your vision, and prevent further damage. Medicines like Methotrexate are crucial in achieving this by carefully modulating your immune system. It’s important to remember that these are chronic conditions, meaning they often require ongoing management. Regular follow-ups with your eye specialist at Pristine Eye Hospitals are vital to monitor your condition and adjust your treatment as needed, ensuring the best possible outcome for your eye health.

General Advice for Taking Your Medicine

Taking any medicine correctly is key to its effectiveness and your safety. For oral medications like tablets, always take them with a glass of water, unless your doctor advises otherwise. If you are prescribed an injection, it will be administered by a healthcare professional or you will be taught how to self-administer if appropriate. Always ensure you understand the specific instructions for your medicine.

Here are some general tips:

Follow Instructions Carefully: Always take your medicine exactly as prescribed by your doctor. Do not change the dose or stop taking it without consulting them first.
Consistency is Key: Try to take your medicine at the same time on the designated day each week to help you remember. Using a calendar, a pill organiser, or setting a reminder on your phone can be very helpful.
Storage: Store your medicine in a cool, dry place, away from direct sunlight and out of reach of children. Do not store it in the bathroom, where humidity can affect it. Always check the packaging for specific storage instructions.
Hygiene: Always wash your hands thoroughly before handling your medicine. This helps prevent contamination.
Disposal: Do not throw unused or expired medicines in the household trash or flush them down the toilet. Ask your pharmacist or hospital for advice on how to safely dispose of medicines.

If you have any doubts or questions about how to take your medicine, always ask your doctor, nurse, or pharmacist at Pristine Eye Hospitals. We are here to help you understand your treatment plan.

When to Seek Medical Help

While Methotrexate is an effective treatment, it’s important to be aware of when to seek medical attention. Your healthcare team at Pristine Eye Hospitals is always available to address your concerns.

Contact your doctor immediately if you experience any of the following:

Signs of Infection: Since Methotrexate suppresses your immune system, you might be more prone to infections. Look out for fever, chills, persistent sore throat, unusual tiredness, or any new or worsening cough.
Unusual Bleeding or Bruising: This could include nosebleeds, bleeding gums, or easy bruising, which might indicate an effect on your blood cells.
Yellowing of Skin or Eyes (Jaundice): This could be a sign of liver problems.
Severe Nausea, Vomiting, or Diarrhoea: While mild digestive upset can occur, severe or persistent symptoms should be reported.
Severe Allergic Reaction: Signs include rash, itching, swelling (especially of the face, tongue, or throat), severe dizziness, or trouble breathing.
Any new or worsening eye symptoms: Such as increased redness, pain, blurred vision, or sensitivity to light.
If you accidentally take Methotrexate daily instead of weekly: This is a critical emergency. Seek immediate medical attention.

It’s also important to attend all your scheduled follow-up appointments and blood tests. These are crucial for monitoring your health and ensuring the medicine is working safely. Open communication with your doctor about any new symptoms or concerns is vital for your well-being while on Methotrexate treatment.

Frequently asked questions

What is Methotrexate used for?

Methotrexate is used to treat various non-infectious inflammatory eye conditions such as non-infectious uveitis, scleritis, JIA-associated uveitis, and other ocular inflammatory diseases where steroid-sparing therapy is needed.

How does Methotrexate work?

Methotrexate works by suppressing the overactive immune system, which is responsible for causing inflammation in the eyes. This helps to reduce inflammation and allows for a reduction or cessation of steroid use.

What are the common brands of Methotrexate available in India?

Common brands of Methotrexate available in India include Folitrax and various generic Methotrexate preparations.

How should I use Methotrexate?

Methotrexate is taken ONCE A WEEK, either as a tablet (2.5 mg strength) or as a weekly injection. It is critical to take it only once a week, never daily. Folic acid supplementation is also required on other days.

Do I need a prescription for Methotrexate?

Yes, Methotrexate is a prescription-only medicine and must be used under the strict supervision of a specialist doctor.

What are the key precautions I need to take while on Methotrexate?

The most critical precaution is that Methotrexate is taken ONCE A WEEK, never daily, as daily dosing can be fatal. You will also need regular blood counts and liver function tests, folic acid supplementation on other days, and complete avoidance of alcohol. It must not be used in pregnancy, and specialist supervision is essential.

References

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.