Here is a detailed overview of Carboxymethyl Cellulose (CMC) 0.5% Eye Drops:
💧 Carboxymethyl Cellulose Eye Drops 0.5%
✅ DESCRIPTION
Carboxymethyl Cellulose Sodium (CMC) 0.5% is a lubricating eye drop used to relieve dry eye symptoms. It mimics natural tears and provides soothing relief from dryness, irritation, burning, and discomfort caused by reduced tear production or environmental factors.
🧪 FORMULATION
- Active Ingredient: Carboxymethylcellulose Sodium 0.5% (5 mg/mL)
- Type: Sterile ophthalmic solution
- Preservative:
- With preservative (e.g., Benzalkonium Chloride), or
- Preservative-free (in unit-dose vials for sensitive eyes)
- Excipients:
- Sodium chloride
- Calcium chloride
- Potassium chloride
- Magnesium chloride
- Purified water
- pH adjusters (e.g., sodium hydroxide)
🌿 NATURE
- Type: Ocular lubricant / Artificial tears
- Class: Demulcent / Viscoelastic agent
- Mechanism of Action:
Forms a moisture-retaining film over the ocular surface → lubricates and protects the eye → promotes healing and comfort
💊 USES
- Relief of symptoms associated with:
- Dry Eye Syndrome (keratoconjunctivitis sicca)
- Environmental irritation (wind, sun, screen time)
- Contact lens discomfort
- Post-operative eye dryness
- Allergic or inflammatory eye conditions
- Can be used multiple times daily
🌟 ADVANTAGES
- Immediate relief from eye dryness and irritation
- Non-irritating, even with frequent use
- Safe for long-term use
- Preservative-free options available for sensitive eyes
- Compatible with most contact lenses (check label)
⚠️ PRECAUTIONS
Side Effects (rare and mild):
- Temporary blurred vision after instillation
- Mild stinging or irritation
- Allergic reaction (very rare)
General Advice:
- Avoid touching the dropper tip to the eye or any surface
- If using other eye medications, wait at least 5 minutes between drops
- Consult a doctor if symptoms persist beyond 72 hours of use
🚫 CONTRAINDICATIONS
- Known hypersensitivity to CMC or any of the drop ingredients
🧊 STORAGE
- Store at 15°C to 25°C (room temperature)
- Do not freeze
- Protect from light and contamination
- Discard 28 days after opening (for multi-dose bottles)
- Use unit-dose vials immediately after opening