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Table of Contents > Drug > Atropine Print



Related terms
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    Related terms
    • U.S. Brand Names: AtroPen®;Atropine CareT;Isopto® Atropine;Sal-TropineT
    • Canadian Brand Names: Dioptic's Atropine Solution;Isopto® Atropine
    • Mexican Brand Names: Redotex
    • Pharmacologic Category: Anticholinergic Agent;Anticholinergic Agent, Ophthalmic;Antidote;Antispasmodic Agent, Gastrointestinal;Ophthalmic Agent, Mydriatic

    • This medicine is used to treat eye irritation.
    • This medicine is used to treat irritable bowel syndrome.
    • This medicine is used to treat ulcer disease.
    • This medicine is used to treat certain poisonings.
    • In surgery, this medicine is used to decrease secretions such as saliva.
    • Atropine decreases acid secretion.
    • It slows movement through the gastrointestinal tract, decreasing spasms.
    • It enlarges the pupil of the eye.


    How to take

    • Oral:
    • Take this medicine 30 minutes before meals.
    • Solution:
    • For the eye only.
    • Take out contact lenses before using medicine. Lenses can be replaced 15 minutes after medicine is given. Do not put contacts back in if eyes are irritated or infected.
    • Do not touch the container tip to the eye, lid, or other skin.
    • Tilt head back and drop medicine into eye.
    • After using medicine, keep your eyes closed. Apply pressure to the inside corner of the eye. Do this for 3-5 minutes. This keeps the medicine in your eye.
    • Separate each eye medicine by 5 minutes.
    • Ointment:
    • For the eye only.
    • Take out contact lenses before using medicine. Lenses can be replaced 15 minutes after medicine is given. Do not put contacts back in if eyes are irritated or infected.
    • Do not touch the container tip to the eye, lid, or other skin.
    • Place medicine inside the lower lid. Close the eye for 1-2 minutes. Roll eyeball around.
    • Separate each eye medicine by 10 minutes.
    • Injection:
    • This medicine is given as a shot into a muscle or vein.

    Missed Dose

    • Use a missed dose as soon as possible.
    • If it is almost time for the next dose, skip the missed dose and return to your regular schedule.
    • Do not use a double dose or extra doses.


    • Store at room temperature.
    • Protect from heat.



    • If you have an allergy to atropine or any other part of this medicine.
    • Tell healthcare provider if you are allergic to any medicine. Make sure to tell about the allergy and how it affected you. This includes telling about rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other symptoms involved.
    • If you have any of the following conditions: Asthma, enlarged colon, enlarged prostate gland, fast heartbeat, glaucoma, intestinal blockage, kidney disease, liver disease, myasthenia gravis, overactive thyroid gland, severe ulcerative colitis, or slow intestinal tract.


    • If you are 65 or older, use this medicine with caution. You could have more side effects.
    • If you are a male with problems urinating, talk with healthcare provider.
    • Check medicines with healthcare provider. This medicine may not mix well with other medicines.
    • Avoid alcohol (includes wine, beer, and liquor).
    • You can get sunburned more easily. Avoid sun, sunlamps, and tanning beds. Use sunscreen; wear protective clothing and eyewear.
    • Be careful in hot weather. Drink plenty of fluids to prevent dehydration.
    • Tell healthcare provider if you are pregnant or plan on getting pregnant.
    • Tell healthcare provider if you are breast-feeding.

    Side Effects

    • Feeling lightheaded, sleepy, having blurred vision, or a change in thinking clearly. Avoid driving, doing other tasks or activities that require you to be alert or have clear vision until you see how this medicine affects you.
    • Constipation. More liquids, regular exercise, or a fiber-containing diet may help. Talk with healthcare provider about a stool softener or laxative.
    • Dry mouth. Frequent mouth care, sucking hard, sugar-free candy, or chewing sugar-free gum may help.


    • Change in condition being treated. Is it better, worse, or about the same?
    • Dry mouth may cause an increase in cavities. Take good care of your teeth. See a dentist regularly.
    • Follow up with healthcare provider.

    Contact a healthcare provider

    • If you suspect an overdose, call your local poison control center or emergency department immediately.
    • Signs of a life-threatening reaction. These include wheezing; chest tightness; fever; itching; bad cough; blue skin color; fits; or swelling of face, lips, tongue, or throat.
    • Unable to pass urine.
    • Sudden change in vision, eye pain, or irritation.
    • Any rash.
    • No improvement in condition or feeling worse.

    General Statements

    • If you have a life-threatening allergy, wear allergy identification at all times.
    • Do not share your medicine with others and do not take anyone else's medicine.
    • Keep all medicine out of the reach of children and pets.
    • Most medicines can be thrown away in household trash after mixing with coffee grounds or kitty litter and sealing in a plastic bag.
    • In Canada return any unused drugs back to the pharmacy. Also, visit for more facts about the right way to get rid of unused drugs.
    • Keep a list of all your medicines (prescription, natural products, supplements, vitamins, over-the-counter) with you. Give this list to healthcare provider (doctor, nurse, nurse practitioner, pharmacist, physician assistant).
    • Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or in Canada to Health Canada's Canada Vigilance Program at 1-866-234-2345.
    • Talk with healthcare provider before starting any new medicine, including over-the-counter, natural products, or vitamins.

    Author information
    • Copyright © 1978-2010 Lexi-Comp Inc. All rights reserved.

    Copyright © 2011 Natural Standard (

    The information in this monograph is intended for informational purposes only, and is meant to help users better understand health concerns. Information is based on review of scientific research data, historical practice patterns, and clinical experience. This information should not be interpreted as specific medical advice. Users should consult with a qualified healthcare provider for specific questions regarding therapies, diagnosis and/or health conditions, prior to making therapeutic decisions.

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