Carbachol - ophthalmic

Patient Medicine Information
Why do I need this medicine?
Carbachol is used for the treatment of glaucoma (increased pressure in the eyes).

It is also used to constrict the pupil of the eye during eye surgery.
How do I use this medicine?
Use this medicine exactly as directed by your doctor or according to the instructions on the label. Do not use more or less than instructed by your doctor.

Follow these steps:

1. Wash your hands thoroughly with soap and water before applying the drop.
2. Apply pressure to the inside corner of the eye (near your nose) using your fingers.
3. Slightly tilt your head back and instill in your eye the number of drops prescribed by your doctor.
4. Wipe any excess liquid from your face with a tissue. Excess liquid in your hands should be rinsed off immediately.

Try to use it at the same time each day.

This medicine must be used regularly for it to be effective. Continue using this medicine even when you feel better. Do not stop using it unless instructed by the doctor.
What should I do if I have forgotten to use this medicine?
Apply the eye drop as soon as you remember. If it is almost time for your next dose, skip the missed dose and return to your normal dosing schedule.

DO NOT double a dose under any circumstances.

If you often forget to use your medicine, let your doctor and pharmacist know.
When should I not use this medicine?
Alert your doctor if you have painful inflammation on the anterior chamber and iris of your eye as this medicine may not be suitable for you.
What should I take note of while using this medicine?
Inform your doctor if you have the following:

- asthma
- corneal abrasion or painful scrape or scratch on the surface of the clear part of the eye
- stomach ulcer or stomach pain
- heart disease
- thyroid disease
- Parkinson's disease
- difficulty urinating/bladder problems

Let your doctor know if you are pregnant or breastfeeding.

You will need to have your eyes checked regularly to monitor the pressure in your eyes. It is important to keep all your appointments with your doctor.
What side effects could I experience?
Carbachol may cause any of the following side effects: headache, stomach pain, diarrhoea, vomiting, salivation, and difficulty urinating.

This medicine may also cause visual disturbances such as blurred vision, tearing, irritation, and sensation of something in the eye.

Some side effects may need immediate medical help. Alert your doctor quickly if you experience any of the following:

- abnormal or irregular heartbeat
- difficulty breathing
- redness and swelling of the eye tissues, pain, and eye discharge

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 used to treat dementia or memory loss e.g. donepezil, rivastigmine
- medicines used to treat high blood pressure

This list does not include all medicines that may interact with Carbachol.

Always notify your doctor and pharmacist if you are taking any other medicines, including herbal tonics, such as traditional Chinese medicine, 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.

Medicines must not be used past the expiry date. Discard the eyedrops 1 month after opening or when you have completed the required number of days of treatment as directed by the doctor.
This information is independently developed by MIMS based on carbachol - ophthalmic 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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