1 What is Mydral?

Brand: Mydral, Mydriacyl, Ocu-Tropic, Tropicacyl

Generic: Tropicamide

Mydral is used in enlarging or dilating the pupil of the eye, enabling doctors to see into the back of it.

Primarily used before eye exams like fundus of the eye examination and cycloplegic refraction, the drug is also used before and after an eye surgery. Tropicamide is only available with a doctor’s prescription.

2 What to Know Before Using

If you are about to start Mydral, speak with your doctor about what you need to know. The risks and benefits the medicine offer must be weighed.

For this medicine, you and your doctor must consider the following:

  • Allergies: If you have any unusual reaction to any medicine, including montelukast, be sure to tell your doctor about it. Additionally, disclose other types of allergies - foods, preservatives, animals, or dyes, if there are any. Read the package ingredients carefully and make sure you are not allergic to any of its ingredients.
  • Pediatric: Pediatric patients with blue eyes or blond hair may be more sensitive to the effects of this drug compared to other children. The increased sensitivity increases their risk for more severe side effects.
  • Geriatric: The elderly is more sensitive to the effects of this drug than younger adults. The increased sensitivity increases their risk for more severe side effects.
  • Pregnancy: Safety of use in pregnant women is not established.
  • Breastfeeding: While there is no available information to determine the safety of use in lactating women, the potential benefits may be weighed against the risk of this medicine before using tropicamide in breastfeeding mothers.
  • Drug Interactions: Certain medicines have adverse effects when used together. Nevertheless, it is still possible to take other medicines while using this eye solution. Make sure to inform your doctor about other drugs you are taking, so that alterations and precautions will be made if necessary.Using tropicamide with certain medicines needs utmost caution because the combination may result in certain side effects. Before taking this drug, talk to your doctor about possible interactions if you are taking other medications, both prescription and over-the-counter, especially bupropion, oxymorphone, or donepezil.
  • Other Medical Problems: If any other medical condition is present, how you use tropicamide may be affected. Inform your doctor about any medical problems, especially Down’s syndrome in children and adult, brain damage in children, spastic paralysis or glaucoma. Using this drug when you have any of these conditions may make them worse.

3 Proper Usage

To use Mydral properly, you must follow all instructions given by your doctor. Wash hands thoroughly before application. Tilt back your head and pull the lower eyelid away from the eye, forming a pouch.

Drop the solution into the pouch and close your eyes gently. Close your eyes and using your finger, apply pressure to the inner corner of the eye to allow proper medicine absorption. Do not blink. Wash hands immediately after application.

Keep your eye drops germ-free by making sure the applicator tip never touch any surface, including your eyes. Cover the container and keep it tightly closed. Do not increase or lessen the dosage. Follow the dosage as prescribed by your doctor.


Follow your doctor’s orders when it comes to dosage. The following information is only for the average dosage of this drug. The number of doses, the number of hours between doses, and how long you will take this drug depend on your health condition, your progress, and how well you react to this medicine.

  • For adults undergoing cycloplegic refraction, the usual dose is 1 drop of 1% solution, to be repeated once in 5 minutes.
  • For children undergoing cycloplegic refraction, 1 drop of 0.5-1% solution, to be repeated once for 5 minutes, or as directed by the doctor.
  • For adults and children undergoing fundus of the eye examination, 1 drop of 0.5% solution 15-20 minutes before the procedure. 

4 Precautions to Take

In using Mydral, you must be careful and take some precautions as advised by your doctor. Applying this medicine will cause the pupil of the eye to be unusually large, causing blurred vision, particularly for close objects. Before driving, using machines, or doing any other activities, make sure your vision is clear and normal.

Your eyes would be more sensitive to light after using tropicamide. Your doctor may advise wearing a pair of UV-protected sunglasses. If the side effects persist for more than 24 hours after using this medicine, consult your doctor.

5 Potential Side Effects

While not all people using Mydral may suffer from side effects, you may need to call your doctor if any of the effects become more bothersome, or do not subside after 24 hours.

Some of the side effects may take place and may not need special medical attention and usually go away as the body adjusts to the medicine during treatment. If you want to report side effects, you may do so by calling the FDA at 1-800-FDA-1088.