Atropine - Intramuscular/Intravenous/Subcutaneous

Patient Medicine Information
Why do I need this medicine?
Atropine helps reduce the secretion of saliva and other body fluids before a surgery. This medicine may also be used to treat poisoning caused by pesticides and other chemicals.

It may also be used in emergency situations wherein the heart beats slowly.

Atropine may be used to treat other conditions as decided by your doctor.
How do I use this medicine?
Atropine may be given intravenously (into the vein), intramuscularly (into the muscle), or subcutaneously (into the fatty layer under the skin, usually in the thigh, upper arm or abdomen area).

Your doctor or nurse will administer this medicine for you.
When should I not use this medicine?
Alert your doctor if you have the following conditions:
  • closed-angle glaucoma (abnormally high pressure in the eye)
  • heart block
  • disorder of the food pipe
  • muscle weakness of the bowel wall
  • severe ulcerative colitis (inflammation of the large intestines)
  • paralytic ileus (a condition where the bowel does not work properly)
  • prostate enlargement
  • bladder obstruction
  • myasthenia gravis (muscle weakness disorder)
as Atropine may not be suitable for you.

Do not breastfeed while you are being treated with this medicine.
What should I take note of while using this medicine?
Inform your doctor if you have the following conditions:
  • heart disease
  • lung obstruction
  • thyroid disease
  • stomach or bowel problems e.g. hiatal hernia (a condition when part of the stomach extends through the diaphragm)
  • fever
  • liver disease
  • kidney disease
Let your doctor know if you are pregnant.

Be sure to check with your doctor or pharmacist before giving this medicine to a child.

If you are going for an operation, including minor surgery and dental work, inform your doctor or dentist that you have used or have been given Atropine.

Keep your appointments with your doctor. Your doctor needs to monitor your condition and check your response to the medication regularly. Your doctor may need to do routine monitoring of your heart rate, blood pressure, pulse and mental status while you are being treated with this medicine.
What side effects could I experience?
Atropine may cause dizziness or blurred vision. If affected, do not drive or take part in any activity in which you need to be alert or need to see clearly.

Dry mouth is a common side effect of this medicine. If you experience severe dry mouth, take some sweets, mints or chewing gum to help reduce discomfort.

Atropine reduces the ability of your body to sweat. Avoid exposure to excessive sunlight or exercise which may cause your body to overheat as you are not able to sweat.

Inform your doctor if any of these side effects do not go away or are severe, or if you experience other side effects.
Can I use this with other medicines?
Inform your doctor and pharmacist if you are taking any of these medicines:
  • medicines for cold or allergy e.g. promethazine, phenylephrine
  • stomach medicines e.g. cisapride, domperidone, metoclopramide
  • medicines to treat depression e.g. amitriptyline, imipramine
  • medicines for irregular or abnormal heartbeat e.g. mexiletine, disopyramide, quinidine
  • medicines for mood disorders e.g. phenothiazine, haloperidol, clozapine
  • potassium supplements (either as a medicine or a as a salt substitute)
  • medicine for Parkinson's disease (a brain disease that affects movement) e.g. amantadine
This list does not include all medicines that may interact with Atropine.

Always notify your doctor or pharmacist if you are taking any other medicines, including herbal tonics such as traditional Chinese medicines, supplements and medicines that you buy without a prescription.
What special dietary instructions should I follow?
Avoid alcohol.
How should I store this medicine?
Store in a cool, dry place away from the reach of children.

Do not use this medicine if it becomes cloudy or if it has changed in colour. Do not freeze.

Medicines must not be used past the expiry date.
This information is independently developed by MIMS based on Atropine - Intramuscular/Intravenous/Subcutaneous and is provided for your reference only. It is not a replacement for and should only be used in conjunction with full consultation with a licensed healthcare professional, the information provided by your pharmacist and/or the manufacturer of the medication. It may not contain all the available information you require and cannot substitute professional medical care, nor does it take into account all individual circumstances. Although great effort has been made to ensure content accuracy, we shall not be held responsible or liable for any claims or damages arising from the use or misuse of the information contained herein, its contents or omissions, or otherwise. Copyright © 2022 MIMS. All rights reserved. Powered by
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