Carbastat Side Effects
Generic name: carbachol ophthalmic
Medically reviewed by Drugs.com. Last updated on Apr 21, 2025.
Note: This document provides detailed information about Carbastat Side Effects associated with carbachol ophthalmic. Some dosage forms listed on this page may not apply specifically to the brand name Carbastat.
Applies to carbachol ophthalmic: ophthalmic solution.
Precautions
Your doctor should check your eye pressure at regular visits.
After you apply this medicine to your eyes, your pupils may become unusually small. This may cause you to see less well at night or in dim light. Be especially careful if you drive, use machines, or do anything else at night or in dim light that could be dangerous if you are not able to see well.
Also, for a short time after you apply this medicine, your vision may be blurred or there may be a change in your near or distance vision. Make sure your vision is clear before you drive, use machines, or do anything else that could be dangerous if you are not able to see well.
Common side effects of Carbastat
Some side effects of carbachol ophthalmic may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.
Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
More common side effects
- blurred vision or change in near or distance vision
- eye pain
- stinging or burning of the eye
Less common side effects
- headache
- irritation or redness of eyes
- twitching of eyelids
Serious side effects of Carbastat
Along with its needed effects, carbachol ophthalmic (the active ingredient contained in Carbastat) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor as soon as possible if any of the following side effects occur while taking carbachol ophthalmic:
Rare side effects
- veil or curtain appearing across part of vision
Symptoms of too much medicine being absorbed into the body
- diarrhea, stomach cramps or pain, or vomiting
- fainting
- flushing or redness of face
- frequent urge to urinate
- increased sweating
- irregular heartbeat
- shortness of breath, wheezing, or tightness in chest
- unusual tiredness or weakness
- watering of mouth
For healthcare professionals
Applies to carbachol ophthalmic: compounding powder, intraocular solution, ophthalmic solution.
General adverse events
The most commonly reported side effects were headache and increased intraocular pressure.[Ref]
Ocular
- Uncommon (0.1% to 1%): Increased intraocular pressure
- Frequency not reported: Corneal clouding, persistent bullous keratopathy, retinal detachment/postoperative iritis following cataract extraction, anterior chamber inflammation, corneal edema, eye inflammation, visual impairment, corneal degeneration, miosis, blurred vision, eye pain, ocular hyperemia[Ref]
Cardiovascular
- Frequency not reported: Flushing[Ref]
Dermatologic
- Frequency not reported: Sweating[Ref]
Gastrointestinal
- Frequency not reported: Epigastric distress, abdominal cramps, vomiting[Ref]
Genitourinary
- Frequency not reported: Tightness in urinary bladder[Ref]
Nervous system
- Uncommon (0.1% to 1%): Headache[Ref]
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References
1. Cerner Multum, Inc. "Australian Product Information."
2. (2011) "Product Information. Miostat (carbachol ophthalmic)." Alcon Laboratories Inc
3. (2011) "Product Information. Isopto Carbachol (carbachol ophthalmic)." Alcon Laboratories Inc
More about Carbastat (carbachol ophthalmic)
- Check interactions
- Compare alternatives
- Dosage information
- During pregnancy
- Drug class: ophthalmic glaucoma agents
- Breastfeeding
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Further information
Carbastat side effects can vary depending on the individual. Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
Note: Medication side effects may be underreported. If you are experiencing side effects that are not listed, submit a report to the FDA by following this guide.