Locarp 2% Eye Drop

Reviewed By Dr. Rajeev Sharma, MBA, MBBS

Last updated on 14 Apr 2026 | 04:21 PM (IST)

Locarp 2% Eye Drop belongs to a group of medicine called miotics. It is used in the treatment of glaucoma and other eye conditions. It lowers the high pressure inside the eye and helps prevent vision loss and nerve damage.

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General Information

Contains

Pilocarpine (2% w/v)

Marketer

Cadila Pharmaceuticals Ltd

Storage

Store below 30°C

The content is shown in English

Product introduction

Locarp 2% Eye Drop is for external use only. Use it in the dose and duration as advised by the doctor. If you wear contact lenses, remove them before using the medicine. Do not touch the tip of the dropper to any surface, as it may contaminate the eye drop.

The common side effects are headache, eye irritation, eye pain, blurred vision, and visual impairment. These are usually temporary and only last for a short time. However, if these symptoms persist or worsen, check with your doctor. It is not advised to drive after using this medicine.

Uses of Locarp Eye Drop

Treatment of Glaucoma

Benefits of Locarp Eye Drop

Treatment of Glaucoma
Glaucoma is an eye disease that damages the optic nerve which is essential for proper vision. This damage is often caused by abnormally high pressure in the eye. Locarp 2% Eye Drop is used to reduce swelling and pressure inside the eye. This helps prevent complications of glaucoma such as blindness and improves vision. This medicine may be used alone or with other eye drops. Glaucoma cannot be prevented. Frequent monitoring, regular checkups can help detect the disease in its early stages.

Side effects of Locarp Eye Drop

Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them

Common side effects of Locarp

Changes in eye lens
Headache
Eye irritation
Eye pain
Blurred vision
Visual impairment
Eyebrow pain

How to use Locarp Eye Drop

This medicine is for external use only. Use it in the dose and duration as advised by your doctor. Check the label for directions before use. Hold the dropper close to the eye without touching it. Gently squeeze the dropper and place the medicine inside the lower eyelid. Wipe off the extra liquid.

How Locarp Eye Drop works

Locarp 2% Eye Drop is a cholinergic agonist. It works by allowing excess aqueous humour (fluid in the eye) to drain from the eye, thereby lowering the increased eye pressure. It also helps reverse the effect of medicines that increase the size of the pupil.

Quick tips

Wash your hands before and after using Locarp 2% Eye Drop to keep your eyes and medicine clean.
Tilt your head back, pull down your lower eyelid, and apply the exact amount of medicine prescribed.
Avoid touching the tip of the medicine to your eye or any surface to prevent germs from getting in.
Your vision may get blurry, or you may have trouble seeing in the dark. Be cautious while driving or moving around.
Store the medicine in a cool, dry place and do not use it beyond the advised treatment duration, even if some is left or not expired.
Wait for at least 5-10 minutes before delivering the next medication in the same eye to avoid dilution.
You may experience a stinging sensation for 1-2 mins. Notify your doctor if it persists for longer.

Safety advice

Alcohol

No interaction found/established

Pregnancy

CONSULT YOUR DOCTOR

The safety of Locarp 2% Eye Drop during pregnancy has not been established. There are no adequate and well-controlled studies in pregnant women, and animal data on reproductive toxicity are insufficient. Your doctor will weigh the benefits and any potential risks before prescribing.

Breast feeding

CONSULT YOUR DOCTOR

Information regarding the use of Locarp 2% Eye Drop during breastfeeding is not available. Please consult your doctor.

Driving

UNSAFE

Locarp 2% Eye Drop may cause temporary visual disturbances. Do not drive until your vision is clear.
Locarp 2% Eye Drop can cause difficulty in adapting to the dark and blurred vision which may affect your ability to drive.

Kidney

No interaction found/established

Liver

No interaction found/established

Frequently asked questions

What is Locarp 2% Eye Drop used for?

Locarp 2% Eye Drop is used to reduce high pressure inside the eye caused by glaucoma or ocular hypertension. It also helps prepare the eye for laser surgery or eye exams by shrinking the pupil (miosis).

What are the common side effects of Locarp 2% Eye Drop?

The common side effects of Locarp 2% Eye Drop include headache, blurred vision, eye irritation, dim vision, eye pain, and sometimes nausea. These are usually mild and temporary.

Who should not use Locarp 2% Eye Drop?

Do not use Locarp 2% Eye Drop if you are allergic to any of its ingredients. Avoid using it if you have conditions where narrow pupils (miosis) can be harmful, such as iritis or uveitis.

Can Locarp 2% Eye Drop cause night vision problems?

Yes, Locarp 2% Eye Drop may cause pupil constriction, which can make it harder to see in dim light or while driving at night. It is advised to exercise caution in low-light situations.

Can Locarp 2% Eye Drop cause serious side effects?

Although rare, serious side effects of Locarp 2% Eye Drop include retinal detachment, especially in people with a history of retinal issues or high myopia. Regular eye exams are important.

Can I drive after using Locarp 2% Eye Drop?

Be careful about driving, especially at night, because Locarp 2% Eye Drop makes your pupils smaller, can cause dim vision, and may affect your ability to see in dark conditions. You should wait until you know how the drops affect you before driving or using machinery.

How quickly does Locarp 2% Eye Drop start working?

Locarp 2% Eye Drop begins working within 20 minutes after putting Locarp 2% Eye Drop in the eye. The effects typically last for 4 to 6 hours, which is why multiple doses throughout the day are usually needed.

When should I call my doctor?

Contact your doctor immediately if you experience severe eye pain, sudden vision changes, signs of eye infection, allergic reactions, severe headache, or nausea or vomiting.

Will Locarp 2% Eye Drop change my eye color?

Unlike some other glaucoma medicines, pilocarpine (present in Locarp 2% Eye Drop) usually does not change eye color. However, it can make the pupils smaller, which may temporarily affect the appearance of the eyes while using the medicine.

Fact Box

Chemical Class

Alkaloid derivative

Habit Forming

Therapeutic Class

OPHTHAL

Action Class

Cholinomimetic Alkaloids- Pilocarpine

References

Briggs GG, Freeman RK, editors. A Reference Guide to Fetal and Neonatal Risk: Drugs in Pregnancy and Lactation. 10th ed. Philadelphia, PA: Wolters Kluwer Health; 2015. pp. 1120-21.
PubChem. Pilocarpine. [Accessed 04 Apr. 2019] (online) Available from:
Pilocarpine. 1974: Alcon Laboratories, INC.; 2009. [Accessed 04 Apr. 2019] (online) Available from:
Central Drugs Standard Control Organisation (CDSCO). [Accessed 03 Apr. 2019] (online) Available from:
Pilocarpine hydrochloride ophthalmic solution [Prescribing Information]. North Chicago, IL: AbbVie Inc.; 2023. [Accessed 25 Jul. 2024] (online) Available from:
Pilocarpine Hydrochloride. Somerset Therapeutics, LLC.; 2025. [Acessed 10 Sep. 2025] (online) Available from:
Pilocarpine hydrochloride ophthalmic solution [Prescribing Information]. Somerset, NJ: Somerset Therapeutics Pvt. Ltd.; 2025. [Accessed 25 Nov. 2025] (online)

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Disclaimer

Tata 1mg's sole intention is to ensure that its consumers get information that is expert-reviewed, accurate and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover everything about particular health conditions, lab tests, medicines, all possible side effects, drug interactions, warnings, alerts, etc. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.

Marketer details

Name: Cadila Pharmaceuticals Ltd
Address: Sarkhej-Dholka Road, Bhat, Ahmedabad-382 210, INDIA.

Vendor Details

Country of origin: India

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Why we need a prescription?

Locarp 2% Eye Drop

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General Information

Contains

Marketer

Storage

Product introduction

Uses of Locarp Eye Drop

Benefits of Locarp Eye Drop

Side effects of Locarp Eye Drop

How to use Locarp Eye Drop

How Locarp Eye Drop works

Quick tips

Safety advice

Alcohol

Pregnancy

Breast feeding

Driving

Kidney

Liver

Frequently asked questions

What is Locarp 2% Eye Drop used for?

What are the common side effects of Locarp 2% Eye Drop?

Who should not use Locarp 2% Eye Drop?

Can Locarp 2% Eye Drop cause night vision problems?

Can Locarp 2% Eye Drop cause serious side effects?

Can I drive after using Locarp 2% Eye Drop?

How quickly does Locarp 2% Eye Drop start working?

When should I call my doctor?

Will Locarp 2% Eye Drop change my eye color?

Fact Box

Chemical Class

Habit Forming

Therapeutic Class

Action Class

References

Want to know more

Have issue with the content

Disclaimer

Marketer details

Vendor Details

Lab tests offered by us

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