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Cyclopentolate Hydrochloride – uses, health risks, and side effects at

Wednesday, September 05, 2018 by

Cyclopentolate hydrochloride, which comes in the form of eye drops, is a drug that’s used before eye examinations, such as a refraction exam. The medication belongs to a class of drugs called anticholinergics.

Cyclopentolate hydrochloride temporarily dilates or widens the pupil of the eye. It also relaxes the muscles of the eye.

Cyclopentolate hydrochloride’s brand names include Cyclogyl.

Known health risks or side effects of cyclopentolate hydrochloride

Cyclopentolate hydrochloride may cause common side effects such as:

  • Blurred vision
  • Eyes becoming more light-sensitive
  • Mild eye irritation or redness
  • Puffy eyelids

Infants and young children who are given cyclopentolate hydrochloride can experience other side effects. Keep an eye out for these side effects 30 minutes after a child has been given the medication:

  • Confusion, speech problems
  • Feeding problems, stomach bloating
  • Feeling restless or excited
  • Loss of coordination
  • Unusual changes in behavior

You may require immediate medical attention if you experience severe side effects such as:

  • Blurred vision, eye pain, seeing halos around lights, or tunnel vision
  • Constipation, little or no urinating
  • Drowsiness
  • Dry mouth or nose, decreased sweating
  • Fast heartbeats
  • Fever, flushing (warmth, redness, or tingly feeling), skin rash
  • Severe burning or redness of the eyes

List of organs that might be affected by cyclopentolate hydrochloride

An overdose of cyclopentolate hydrochloride may cause the following complications:

  • Blurred vision
  • Fast/irregular heartbeat
  • Fever
  • Flushed/dry skin
  • Loss of coordination
  • Mental/mood changes such as hallucinations

An overdose of the medication can also cause an allergic reaction. Signs of an allergic reaction may include difficulty breathing; hives; or the swelling of the face, lips, tongue, or throat.

If you think you’ve taken too much of this drug, consult a healthcare professional. If your symptoms are severe, go to the nearest emergency room immediately.

Food items or nutrients that have similar effects to cyclopentolate hydrochloride

The following foods or nutrients have similar effects to cyclopentolate hydrochloride, and they can help keep your eyes healthy:

  • Carrots – Carrots are full of beta-carotene, an antioxidant and a precursor of vitamin A. Eating carrots can help improve night vision and prevent the deterioration of your eyesight. The vegetable can also prevent oxidative damage and inflammation, the two main causes of eyesight problems.
  • Fatty fish – Fatty fish contains omega-3-fatty acids that can help reduce inflammation by balancing the ratio of omega-3 and omega-6 fatty acids. Sources include grilled fish like mackerel, salmon, and tuna. You can also take fish oil supplements after consulting a healthcare professional.
  • Kale – Kale is chock-full of dietary fiber, lutein, minerals, and vitamins. Lutein helps prevent light and oxidative damages, and it can protect your eyes from age-related macular degeneration and cataracts.

Treatment and management options for the side effects of cyclopentolate hydrochloride

The following treatments and management options can help prevent the side effects associated with cyclopentolate hydrochloride:

  • Almonds – Almonds are full of antioxidants, omega-3 fatty acids, and vitamin E that can help improve your vision. Soak five to 10 almonds in water overnight, then peel the skin and grind the almonds the next morning. Consume the almond “paste” with a glass of warm milk daily for a couple of months.
  • Bilberry – Bilberry can help improve night vision since it triggers the regeneration of the visual purple component of the retina. Consume at least half a cup of ripe bilberry fruits daily. The herb can interact with other herbs and medications, so consult a medical professional before taking it.
  • Ginkgo biloba – Ginkgo biloba improves circulation and eye blood flow. Aside from boosting eye health, it can help prevent eye conditions such as glaucoma and macular degeneration. Take at least 120 milligrams (mg) standardized ginkgo biloba capsules daily in two or three divided doses. Do not give the herb to children.

Where to learn more


Cyclopentolate hydrochloride temporarily dilates or widens the pupil of the eye. It also relaxes the muscles of the eye.

Cyclopentolate hydrochloride may cause common side effects such as blurred vision, mild eye irritation/redness, and puffy eyelids.

An overdose of cyclopentolate hydrochloride may cause complications like a fast/irregular heartbeat, fever, or an allergic reaction.

Carrots, fatty fish, and kale have similar effects to cyclopentolate hydrochloride, and they can help keep your eyes healthy.

Almonds, bilberry, and gingko biloba can help prevent the side effects associated with cyclopentolate hydrochloride.

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