Carbachol is a prescription medicine. The sections below reproduce one FDA label for it, named under "Label". Products in other forms, strengths or from other makers have their own labels, which can differ.
- Type
- Prescription only (Rx)
- Brand names
- Miostat
- Taken
- Ophthalmic
- Label
- Alcon Laboratories, Inc., revised February 10, 2023 · full label on DailyMed
- Generic
- No · details
What it is used for
Intraocular use for obtaining miosis during surgery. In addition, MIOSTAT* (carbachol intraocular solution, USP) 0.01% reduces the intensity of IOP elevation in the first 24 hours after cataract surgery.
Who should not take it (contraindications)
Should not be used in those persons showing hypersensitivity to any of the components of this preparation.
Warnings
For single-dose intraocular use only. Discard unused portion. Intraocular carbachol 0.01% should be used with caution in patients with acute cardiac failure, bronchial asthma, peptic ulcer, hyperthyroidism, G.I. spasm, urinary tract obstruction and Parkinson's disease. The vial stopper contains natural rubber (latex) which may cause severe allergic reactions.
Precautions
Use only if the container is undamaged. Carcinogenesis: Studies in animals to evaluate the carcinogenic potential have not been conducted. Pregnancy: There are no adequate and well-controlled studies in pregnant women. MIOSTAT* (carbachol intraocular solution, USP) 0.01% should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. Nursing Mothers: It is not known if this medication is excreted in breast milk. Exercise caution when administering to a nursing woman.
Side effects (adverse reactions)
Ocular: Corneal clouding, persistent bullous keratopathy, retinal detachment and postoperative iritis following cataract extraction have been reported. Systemic: Side effects such as flushing, sweating, epigastric distress, abdominal cramps, tightness in urinary bladder, and headache have been reported with topical or systemic application of carbachol. The following additional reactions have been identified during post-approval use of MIOSTAT (carbachol intraocular solution, USP) 0.01% in clinical practice. Because they are reported voluntarily from a population of unknown size, estimates of frequency cannot be made. The reactions, which have been chosen for inclusion due to either their seriousness, frequency of reporting, possible causal connection to MIOSTAT, or a combination of these factors, include: corneal edema, drug effect prolonged (miosis), eye inflammation, eye pain, intraocular pressure increased, ocular hyperemia, vision blurred, visual impairment, and vomiting.
Pregnancy
There are no adequate and well-controlled studies in pregnant women. MIOSTAT* (carbachol intraocular solution, USP) 0.01% should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.
Breastfeeding
It is not known if this medication is excreted in breast milk. Exercise caution when administering to a nursing woman.
Use in children
Safety and efficacy in pediatric patients have not been established.
Use in older adults
No overall differences in safety or effectiveness have been observed between elderly and younger patients.
Is there a generic Carbachol?
Not currently. Generic versions were approved in the past, but all of them are listed as discontinued in FDA records.
Brand-name versions
- Miostat Alcon, approved 1972
Source: Drugs@FDA (via openFDA), checked October 29, 2026. Marketing status is what companies report to the FDA; whether a pharmacy stocks a product, and what your insurance covers, can differ.
Dosage:
we do not reproduce dosing instructions. The right dose depends on the person and the condition and is set by the prescriber or pharmacist. Dosage section of the full label.
Carbachol in the news
We have not covered this medicine yet. Latest news
Recalls
No recalls matched to this medicine in FDA enforcement reports from the last 3 years (or older ones still open). Search all recalls
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Source: FDA structured product labeling, retrieved through openFDA. Label text is shown as published by the FDA, without editing; long sections are shortened, marked […]. openFDA data are not validated for clinical use — always check the current label and ask a doctor or pharmacist about your own treatment. Set ID f28d7a56-e079-4a8b-ad81-9a97c780de67.