Carboxymethylcellulose Sodium
Carboxymethylcellulose Sodium is a cellulose derivative that acts as a lubricant and bulk-forming agent, commonly used as an artificial tear for dry eye relief and as a laxative for constipation. It is available in various formulations including eye drops, oral solutions, and topical applications.
Carboxymethylcellulose Sodium is a lubricating and bulk-forming agent used primarily for dry eye relief and constipation, depending on the formulation.
Key facts at a glance
- RxNorm
- 491498
- Generic
- Carboxymethylcellulose Sodium
- Class
- pin-variant
- Brands
- Eyes Alive Lubricating, TheraTears
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Dry eye syndrome, eye irritation from environmental factors (wind, sun, computer use), corneal abrasions (as a protective measure), and constipation (as a bulk-forming laxative). Also used for throat irritation and as a binder in various pharmaceutical formulations.
As an ophthalmic agent, it acts as a lubricant by forming a protective film over the eye surface that helps retain moisture and reduce friction. As a laxative, it absorbs water in the intestines to add bulk, stimulating natural bowel contractions and facilitating stool passage.
For eye use: do not use if solution changes color or becomes cloudy. For oral use: take with adequate water (at least 8 oz per dose). Avoid taking within 1 hour of other medications. Consult a healthcare provider if symptoms persist beyond 7 days or if you experience eye pain, vision changes, or severe constipation.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 27, 2026. · Read our editorial policy