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Cylate

Generic name: cyclopentolate ophthalmic

Brand names: Cyclogyl, Cylate

Last updated November 2, 2026 0 views
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What is Cylate?

Cyclopentolate relaxes the muscles in your eye to make your pupil bigger (dilate).

Cylate (for the eyes) is used to make your pupil bigger (dilate) before an eye exam.

Cylate may also be used for reasons not mentioned in this medication guide.

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Warnings

You should not take this medicine if you have angle-closure glaucoma.

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Before taking this medicine

You should not receive Cylate if you have ever had a severe allergic reaction to Cylate, or if you have angle-closure glaucoma.

To make sure Cylate is safe for you, tell your doctor if you have glaucoma.

FDA pregnancy category C. It is not known whether Cylate will harm an unborn baby. Tell your doctor if you are pregnant.

It is not known whether cyclopentolate ophthalmic passes into breast milk or if it could harm a nursing baby. Tell your doctor if you are breast-feeding a baby.

This medicine is usually given about 40 to 50 minutes before your eye exam or other procedure.

A healthcare provider will place the eyedrops into your eyes.

After you receive the drops, close your eyes for 2 or 3 minutes with your head tipped down, without blinking or squinting. Gently press your finger to the inside corner of the eye to keep the liquid from draining into your tear duct.

Cylate can cause feeding problems in an infant. After this medicine has been given to your infant, wait at least 4 hours before you feed the child.

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Cylate side effects

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Tell your caregivers right away if you have:

  • blurred vision, tunnel vision, eye pain, or seeing halos around lights;
  • severe burning or redness of your eyes;
  • drowsiness;
  • constipation, little or no urinating;
  • dry mouth or nose, decreased sweating;
  • fast heartbeats; or
  • fever, skin rash, flushing (warmth, redness, or tingly feeling).

Infants and young children may be more likely to have side effects from Cylate. For at least 30 minutes after the child has been treated with Cylate, watch for the following side effects:

  • loss of coordination;
  • unusual changes in behavior;
  • feeling restless or excited;
  • confusion, speech problems; or
  • feeding problems, stomach bloating.

Common side effects of Cylate may include:

  • blurred vision;
  • mild eye irritation or redness;
  • puffy eyelids; or
  • the eyes being more sensitive to light.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

This section was rewritten for readability and reviewed for meaning.

What happens if I miss a dose?

Since Cylate is used as needed, it does not have a set daily dosing schedule.

This section was rewritten for readability and reviewed for meaning.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

Cylate can cause blurred vision for up to 24 hours after using it. Be careful if you drive or do anything that requires clear vision.

Cylate may also make your eyes more sensitive to light. Until the effects wear off, protect your eyes from the sun or bright light.

This section was rewritten for readability and reviewed for meaning.

What other drugs will affect Cylate?

It is not likely that other drugs you take by mouth or inject will affect cyclopentolate used in the eyes. However, many drugs can interact with each other. Inform each of your healthcare providers about all medicines you use, including prescription and over-the-counter medicines, vitamins, and herbal products.

This section was rewritten for readability and reviewed for meaning.

Related medicines

Before you take this medicine: the information on this page is general and may not cover your personal circumstances. Read the label supplied with your medicine and ask a pharmacist or doctor if you are unsure, especially if you are pregnant, breastfeeding, taking other medicines or managing a long-term condition.
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Content is provided for education and is not medical advice. See our medical disclaimer.