Alteplase (IV tPA) is a medicine used to dissolve blood clots that can block blood flow, particularly in conditions affecting the eye like acute central retinal artery occlusion, and also in acute stroke.
| Drug class | Thrombolytic |
|---|---|
| Type | Single |
| Forms | IV Infusion |
| Common strength | Weight-based |
| Common Indian brands | Actilyse |
| Prescription status | Prescription (hospital use) |
What Alteplase (IV tPA) is used for
Alteplase (IV tPA) is a powerful medicine used in emergency situations to treat conditions where a blood clot is blocking blood flow. At Pristine Eye Hospitals, our specialists may use it for:
- Acute Central Retinal Artery Occlusion (CRAO): This is a serious eye condition where the main artery supplying blood to the retina (the light-sensitive tissue at the back of your eye) gets blocked by a clot. This can lead to sudden, severe vision loss. Alteplase may be considered within a specific timeframe (therapeutic window) to try and restore blood flow.
- Acute Stroke: While not primarily an eye condition, Alteplase is also a standard treatment for acute stroke, which occurs when blood flow to part of the brain is interrupted, often by a clot.
It’s important to understand that the use of Alteplase for CRAO is a specialist decision and is time-critical. Our doctors will assess your condition thoroughly to determine if this treatment is suitable for you.
How it works
Alteplase (IV tPA) is a ‘thrombolytic’ medicine. In simple terms, it works by dissolving blood clots. When a clot blocks a blood vessel, it stops blood from flowing to the tissues beyond the blockage. Alteplase helps to break down this clot, allowing blood flow to resume. In conditions like acute central retinal artery occlusion, restoring blood flow to the retina as quickly as possible is crucial to try and preserve vision.
How it’s used
Alteplase (IV tPA) is a very specific and powerful medicine that is always administered in a hospital or clinic setting by highly trained medical specialists. It is never for self-use.
- Form: It is given as an intravenous (IV) infusion, meaning it is delivered directly into your bloodstream through a vein, usually in your arm.
- Dosing: The exact dose is carefully calculated based on your body weight. This ensures you receive the right amount of medicine for your specific situation.
- Emergency Use: This medicine is used in emergency situations, particularly for acute conditions like central retinal artery occlusion or stroke, where rapid treatment is essential. The timing of administration is critical for its effectiveness.
Our medical team at Pristine Eye Hospitals will closely monitor you throughout the infusion and afterwards to ensure your safety and to assess the treatment’s effectiveness.
Always follow your ophthalmologist’s exact instructions.
Brands available in India
- Actilyse
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. This is given only by specialists in a hospital or clinic setting and is never for self-use.
Precautions & side effects
Alteplase (IV tPA) is a potent medicine, and while it can be life-saving or vision-saving in certain situations, it comes with important considerations:
- Emergency Treatment: Acute central retinal artery occlusion (CRAO) is considered a stroke-equivalent emergency. This means that just like a stroke, the benefit of treatment is highly time-critical. There is a narrow ‘therapeutic window’ during which the medicine is most effective.
- Specialist Use: The decision to use Alteplase for CRAO is made by highly experienced specialists. Its use can be complex and sometimes controversial, requiring careful consideration of the potential benefits versus risks for each individual patient.
- Hospital Setting: This medicine is exclusively administered in a hospital or specialized clinic environment under constant medical supervision. It is never for self-administration.
- Prescription Only: Alteplase is a prescription medicine. It must only be used as directed by a qualified ophthalmologist or neurologist.
- General Warning: This page provides general information and is not a substitute for professional medical advice, diagnosis, or a prescription. Do not attempt to self-medicate or reuse an old prescription. Always consult with your doctor for any health concerns.
Understanding Central Retinal Artery Occlusion (CRAO)
Central Retinal Artery Occlusion (CRAO) is a serious eye condition that can cause sudden and profound vision loss. It happens when the main artery that supplies blood to your retina – the light-sensitive layer at the back of your eye – becomes blocked. This blockage is usually caused by a tiny blood clot or a piece of plaque (a fatty deposit) that travels from another part of your body and gets stuck in the retinal artery. Because the retina needs a constant supply of oxygen and nutrients from the blood to function, a blockage can quickly lead to damage to the retinal cells, potentially causing permanent vision loss if not treated promptly. Symptoms often include a sudden, painless loss of vision in one eye, which can range from blurring to complete blindness. If you experience any sudden changes in your vision, it is crucial to seek immediate medical attention. At Pristine Eye Hospitals, our emergency team is equipped to diagnose and manage such critical conditions.
Why Timely Treatment Matters
For conditions like CRAO, time is of the essence. Just like a stroke affecting the brain, a ‘retinal stroke’ affecting the eye means that every minute counts. The longer the retina is deprived of blood flow, the greater the risk of irreversible damage. This is why treatments like Alteplase (IV tPA) are considered emergency interventions. The goal is to restore blood flow as quickly as possible to save as much vision as can be preserved. Our doctors will evaluate your condition rapidly and thoroughly to determine the best course of action, considering the ‘therapeutic window’ – the specific timeframe during which treatment is most likely to be effective. It’s important for patients and their families to understand the urgency of these situations and to cooperate fully with the medical team to ensure the best possible outcome.
General Advice for Eye Health and When to Seek Help
Maintaining good overall health is vital for your eyes. Regular eye check-ups, especially if you have underlying conditions like high blood pressure, diabetes, or high cholesterol, can help detect and manage risk factors for eye diseases. If you are prescribed any eye medications, always follow your doctor’s instructions carefully. For general eye drops or ointments (though Alteplase is an IV infusion, this general advice is useful for other eye medicines you might use), ensure your hands are clean before touching your eyes or the medicine bottle. Avoid touching the tip of the dropper to your eye or any other surface to prevent contamination. Store all medicines as instructed, usually in a cool, dry place away from direct sunlight and out of reach of children. Never share your eye medicines with anyone else. Most importantly, if you experience any sudden changes in your vision, such as sudden blurring, loss of vision, flashes of light, new floaters, or eye pain, do not delay. Seek immediate medical advice from an ophthalmologist. Early diagnosis and treatment can make a significant difference in preserving your vision and eye health.
Frequently asked questions
What is Alteplase (IV tPA) used for?
Alteplase (IV tPA) is used to treat serious conditions caused by blood clots, specifically acute central retinal artery occlusion (a blockage in the eye's main artery) and acute stroke.
How does Alteplase (IV tPA) work?
Alteplase (IV tPA) works by dissolving the blood clots that are blocking blood flow in your arteries. By breaking down these clots, it helps to restore normal blood circulation to the affected area, such as the retina in your eye or parts of your brain.
What are the common Indian brands of Alteplase (IV tPA)?
In India, Alteplase (IV tPA) is available under the brand name Actilyse.
How is Alteplase (IV tPA) administered?
Alteplase (IV tPA) is given as an intravenous (IV) infusion, meaning it is delivered directly into your bloodstream through a vein. It is always administered by specialists in a hospital or clinic setting and is never for self-use.
Do I need a prescription for Alteplase (IV tPA)?
Yes, Alteplase (IV tPA) is a prescription medicine. It is only used under the direct supervision and prescription of a qualified ophthalmologist or neurologist in a hospital setting.
What are the key precautions to be aware of with Alteplase (IV tPA)?
Alteplase (IV tPA) is used in emergency situations, and its benefit is time-critical. Its use for central retinal artery occlusion is a specialist decision and can be controversial, requiring careful assessment. It is only given by specialists in a hospital and is never for self-use. Always follow your doctor's instructions.
References
- Alteplase – StatPearls – NCBI Bookshelf – NIH
- 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
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.