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Mydriacyl

Generic name: tropicamide ophthalmic

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

Tropicamide helps relax the muscles in the eye. This makes the pupil widen, so it does not get smaller when your doctor shines a light into your eye.

Mydriacyl (for the eyes) is used to widen the pupil for an eye exam or other diagnostic procedures.

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

This section was rewritten for readability and reviewed for meaning.

Warnings

Protect your eyes from bright light while your pupils are dilated.

This section was rewritten for readability and reviewed for meaning.

Before taking this medicine

You should not use Mydriacyl if you are allergic to it.

To make sure Mydriacyl is safe for you, tell your doctor if you have:

  • glaucoma; or
  • any drug allergies.

It is not known whether this medicine will harm an unborn baby. Tell your doctor if you are pregnant.

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

Do not give this medicine to a child without medical advice.

This section was rewritten for readability and reviewed for meaning.

Mydriacyl side effects

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

Mydriacyl may cause serious side effects. Call your doctor right away if you have:

  • unusual changes in mood or behavior;
  • a fast, slow, or uneven heart rate;
  • shortness of breath; or
  • feeling light-headed, as if you might faint.

Common side effects of Mydriacyl may include:

  • blurred vision;
  • mild stinging of the eyes;
  • increased sensitivity of your eyes to light;
  • dry mouth; or
  • headache.

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 the FDA at 1-800-FDA-1088.

This section was rewritten for readability and reviewed for meaning.

How should I use Mydriacyl?

Follow all directions on your prescription label. Do not use this medicine in larger or smaller amounts or for longer than recommended.

Mydriacyl is most often used only in a doctor's office during an eye examination. Instructions are provided below for giving yourself the medicine if your doctor has prescribed it for home use.

Do not take by mouth. Mydriacyl is for use only in the eyes.

Do not use this medicine while wearing contact lenses. Mydriacyl may contain a preservative that can discolor soft contact lenses. It may be best to wait until your eyes are no longer dilated before putting in your contact lenses.

Wash your hands before and after using the eye drops. Because a child might rub his or her eyes after the drops are given, wash the child's hands after use.

To apply the eye drops:

  • Tilt your head back slightly and pull down your lower eyelid to create a small pocket. Hold the dropper above the eye with the tip down. Look up and away from the dropper and squeeze out a drop.
  • 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 for 1 to 3 minutes, to keep the liquid from draining into your tear duct.
  • Use only the number of drops your doctor has prescribed. If you use more than one drop, wait about 5 minutes between drops.

Do not touch the tip of the eye dropper or place it directly on your eye. A contaminated dropper can infect your eye, which could lead to serious vision problems.

Do not use the eye drops if the liquid has changed colors or has particles in it. Call your pharmacist for new medicine.

Store at room temperature away from moisture and heat. Do not freeze. Keep the bottle tightly closed when not in use.

What happens if I miss a dose?

Since Mydriacyl is usually given only during an eye exam, it is unlikely that you will have a regular dosing schedule.

If you do have a schedule, apply the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose. Do not use extra medicine to make up for the missed dose.

This section was rewritten for readability and reviewed for meaning.

What happens if I overdose?

An overdose of tropicamide ophthalmic is not expected to be dangerous. Seek emergency medical help or call the Poison Help line at 1-800-222-1222 if anyone has accidentally swallowed the medication.

Mydriacyl may cause blurred vision or make your eyes very sensitive to light. Be cautious if you drive or do anything that requires clear vision. This effect may last as long as 24 hours.

Protect your eyes from bright light while your pupils are dilated.

Unless your doctor instructs you otherwise, avoid using other eye medications until your pupils are no longer dilated.

This section was rewritten for readability and reviewed for meaning.

What other drugs will affect Mydriacyl?

It is unlikely that other medications you take by mouth or through injection will affect tropicamide used in the eyes. However, many drugs can interact with each other. Inform your doctor about all the medicines you are currently taking and any that you start or stop using, especially:

  • glaucoma medication.

This list is not complete. Other drugs may interact with tropicamide ophthalmic, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible interactions are included in this medication guide.

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.