What is a Generic Drug?

A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.

The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.

Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.

Cyclogyl (Cyclopentolate)


Cyclogyl (Cyclopentolate)

Prescription Required

1% Eye Drops

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  • Product Details


    What is Cyclogyl?

    • Cyclogyl (Cyclopentolate) is a medication used to cause pupil dilation or paralysis of the ciliary eye muscle.

    How does it work?

    • Cyclopentolate is an anticholinergic medication. It works by blocking the activity of acetylcholine in the eye muscles.

    How should I store it?

    • Store your Cyclogyl at room temperature and keep it out of reach of children.


    Are there any special instructions?

    • Click here to watch an instructional video about using eye drops.
    • Avoid touching the tip of the bottle to prevent contamination.
    • Replace the cap after each use.

    What is the usual dose?

    • Instill 1-2 drops into the eye. May repeat in five to ten minutes if needed.


    What is the active ingredient in Cyclogyl?

    • Cyclopentolate hydrochloride

    What are the inactive ingredients?

    • For a complete list of inactive ingredients, click here or check the product packaging.


    Cyclogyl eye drops could interact with the following medications:

    • Carbachol
    • Pilocarpine
    • Ophthalmic cholinesterase inhibitors


    Who should avoid using Cyclogyl?

    • Do not use Cyclogyl if you have a known allergy to any of the ingredients.
    • Do not use Cyclogyl if you have untreated narrow-angle glaucoma.

    What are the risks?

    • Cyclogyl can cause central nervous system disturbances, especially in younger patients.
    • If you are pregnant, breastfeeding, or considering becoming pregnant, talk to your doctor about the risks of using Cyclogyl.

    Side Effects

    What are the potential side effects of Cyclogyl?

    • Increased intraocular pressure
    • Burning
    • Photophobia
    • Blurred vision
    • Irritation
    • Hyperemia
    • Conjunctivitis
    • Blepharoconjunctivitis
    • Punctate keratitis
    • Synechiae
    • Psychotic disturbances
    • Ataxia
    • Incoherent speech
    • Restlessness
    • Hallucinations
    • Hyperactivity
    • Seizures
    • Disorientation
    • Skin rash
    • Drowsiness
    • Tachycardia
    • Hyperpyrexia
    • Vasodilation
    • Urinary retention
    • Diminished gastrointestinal motility
    • Decreased salivation

    Other Considerations

    • Compare our Cyclogyl eye drops price at Canada Pharmacy to your local pharmacy.


    1. DailyMed - Cyclogyl- cyclopentolate Hydrochloride solution/ DROPS. (2019). Retrieved May 25, 2020.
    2. Methods for Instilling Eye Drops. (2016). Retrieved May 24, 2020.

    Fact Table




    US: FDA


    OMP: less than 10%

    Legal status

    RX Only

    Chemical Name


    Elimination half-life

    111 minutes

    Dosage (Strength)

    0.5%, 1%, 2%


    Risk not ruled out



    Protein binding


    PubChem CID






    ATC code






    Routes of administration


    Frequently Asked Questions about Cyclogyl

    What is Cyclogyl?

    Cyclogyl is an anticholinergic medication used primarily in ophthalmology to dilate the pupil and temporarily paralyze accommodation (the ability to focus).

    What is Cyclogyl used for?

    Cyclogyl is used to dilate the pupil before an eye examination or surgery. It helps the ophthalmologist get a better view of the inside of the eye.

    How is Cyclogyl administered?

    Cyclogyl is administered as eye drops. The number of drops and frequency of use will be determined by your ophthalmologist based on the purpose of the dilation.

    What are the side effects of Cyclogyl?

    Common side effects include blurred vision, sensitivity to light, and a stinging sensation upon application. Systemic side effects can occur but are rare, and may include dry mouth, flushed skin, and an increased heart rate.

    How long does the effect of Cyclogyl last?

    The duration of the dilation effect can vary among individuals, but it generally lasts for several hours. It is essential to protect your eyes from bright light during this period.

    Can I drive after using Cyclogyl?

    Due to the dilation of the pupils and blurred vision, it is recommended not to drive or operate heavy machinery until the effects of the medication have worn off.

    Are there any contraindications to using Cyclogyl?

    Cyclogyl should not be used in individuals with a known hypersensitivity to cyclopentolate or any of its ingredients. It should also be used with caution in patients with narrow-angle glaucoma.

    Can I use Cyclogyl while pregnant or breastfeeding?

    Consult your doctor before using Cyclogyl if you are pregnant or breastfeeding. The effects on the fetus or nursing infant are not well-established.

    How should I store Cyclogyl?

    Store Cyclogyl in a cool, dry place, away from direct sunlight and out of reach of children.

    What should I do if I experience severe side effects or an allergic reaction?

    If you experience severe side effects, signs of an allergic reaction (like rash, itching, swelling, severe dizziness, or difficulty breathing), discontinue use and seek immediate medical attention.

    IMPORTANT NOTE: The above information is intended to increase awareness of health information and does not suggest treatment or diagnosis. This information is not a substitute for individual medical attention and should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. See your health care professional for medical advice and treatment.

    Product Code : 2700

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