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Pentocyl D Eye Drop

Written By Dr. Anuj Saini, MMST, MBBS
Reviewed By Dr. Lalit Kanodia, MBA, MD Pharmacology
Last updated on 03 Nov 2025 | 12:15 PM (IST)
Pentocyl D Eye Drop is a combination of two medicines. It is used to enlarge (dilate) the pupil of the eye before an eye examination. It relaxes certain muscles in the eyes and may also relieve pain in certain eye conditions.
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The content is shown in English
Pentocyl D Eye Drop image
Pentocyl D Eye Drop image

Product introduction

Pentocyl D Eye Drop is for topical use only. It is generally administered 15-20 minutes prior to an eye examination. Do not self-administer this medicine at home. Check the label thoroughly for directions before using the medicine.

The use of this medicine may cause temporary blurring of eyes, stinging sensation, or increased sensitivity to light in some people. However, these are temporary and usually resolve on their own. Let your doctor know if they do not go away or bother you. Do not use the medicine if you have a known allergy to any components of this preparation.

Pentocyl D Eye Drop is contraindicated in people with primary glaucoma or a tendency toward glaucoma (e.g., narrow anterior chamber angle). Let your doctor know if you have any such conditions. It is not known whether this medicine is safe for pregnant and breastfeeding women. Let your doctor know if you are pregnant or breastfeeding to make sure it is safe for you and the developing baby.

Uses of Pentocyl D Eye Drop

Benefits of Pentocyl D Eye Drop

Eye examination
Pentocyl D Eye Drop is a medicine that helps to increase the size of the pupil of the eye so that eye examinations can be carried out thoroughly. Pentocyl D Eye Drop also gives relief from eye pain by relaxing the eye muscles. This medication starts to work in minutes, and its effect usually lasts 24 hours or sometimes longer. It is advisable to inform your doctor if you continue to have blurred vision, sensitivity to light, or dilated (increase in size) pupils several days after your examination.

Side effects of Pentocyl D 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 Pentocyl D
  • Increased sensitivity to light
  • Blurred vision
  • Stinging sensation

How to use Pentocyl D 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 Pentocyl D Eye Drop works

Pentocyl D Eye Drop is a combination of two medicines: Cyclopentolate and Dexamethasone which relieve eye pain. Cyclopentolate is used to dilate or enlarge the pupil of the eye so that the doctor can examine the back of the eyeball. It may also be used to reduce pain in certain eye conditions. Dexamethasone belongs to a group of medicines called corticosteroids. It prevents late phase allergic reactions by preventing release of chemicals responsible for allergy.

Quick tips

  • Pentocyl D Eye Drop allows your doctor to examine your eye more easily.
  • It will cause blurred vision which may last for some time. Make sure you can see clearly again before you drive and before you use tools or machines.
  • If you wear eye lens, avoid wearing them immediately after using Pentocyl D Eye Drop. You may wear spectacles instead. You doctor will be able to advise you on this.

Safety advice

Alcohol

Alcohol

No interaction found/established
Pregnancy

Pregnancy

CONSULT YOUR DOCTOR
Information regarding the use of Pentocyl D Eye Drop during pregnancy is not available. Please consult your doctor.
Breast feeding

Breast feeding

CONSULT YOUR DOCTOR
Information regarding the use of Pentocyl D Eye Drop during breastfeeding is not available. Please consult your doctor.
Driving

Driving

UNSAFE
Pentocyl D Eye Drop may cause side effects which could affect your ability to drive.
Pentocyl D Eye Drop may cause dizziness (vertigo). Changes in your eyesight or muscle weakness may also happen. This may affect your driving ability.
Kidney

Kidney

No interaction found/established
Liver

Liver

No interaction found/established

Frequently asked questions

These drops dilate (enlarge) the pupil to help doctors examine the inside of the eye and reduce inflammation caused by conditions like uveitis, iritis, or after eye surgery.
Avoid them if you are allergic to cyclopentolate, dexamethasone, or similar medicines, or if you have glaucoma with increased eye pressure, viral infections of the eye, or certain eye injuries.
In rare cases, they may cause eye pain, swelling, redness, blurred vision that lasts longer than usual, light sensitivity, or allergic reactions. Get medical help right away if symptoms get worse.

Fact Box

Habit Forming

No

Therapeutic Class

OPHTHAL
100% genuine products
100% genuine products
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Safe & secure payments
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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: Indiana Opthalmics
Address: Plot No.136-137,Wadhwan,Surendranagar,Pin – 363035

Vendor Details

Country of origin: India
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