C-Beta

Ciprofloxacin (0.3%) + Betamethasone (0.1%)
Price: Suspension (5ml): ₹82 - ₹115
Mfr: Ajanta Pharma Ltd | Form: Ophthalmic Suspension

📋 Clinical Overview

A fixed-dose combination ophthalmic suspension/ointment containing a broad-spectrum fluoroquinolone antibiotic (Ciprofloxacin) and a potent corticosteroid (Betamethasone). It is primarily used for the treatment of steroid-responsive inflammatory ocular conditions where the risk of superficial bacterial infection is high or where there is an existing bacterial infection. The combination provides anti-inflammatory, anti-allergic, and antibacterial actions.

💊 Dosage & Administration

Adult: Ophthalmic suspension: One or two drops in the affected eye(s) every 4 to 6 hours. In severe inflammation, may be used hourly initially, tapering as inflammation subsides. Ointment: Apply a small ribbon (approx. 1 cm) into the conjunctival sac up to 3-4 times daily.

Note: 1. Wash hands. 2. Tilt head back. 3. Gently pull lower eyelid to form a pouch. 4. Instill prescribed drops/ointment without touching tip to eye or any surface. 5. Close eye gently for 1-2 minutes, applying gentle pressure to the nasolacrimal duct (inner corner) to minimize systemic absorption. 6. Wait at least 5-10 minutes before instilling any other eye medication.

⚠️ Contraindications

  • Hypersensitivity to ciprofloxacin, other quinolones, betamethasone, or any component
  • Viral infections of the cornea and conjunctiva (e.g., herpes simplex, vaccinia, varicella)
  • Fungal diseases of the eye
  • Mycobacterial ocular infections
  • Untreated purulent ocular infections not covered by ciprofloxacin

🔬 Mechanism of Action

Ciprofloxacin exerts bactericidal activity by inhibiting bacterial DNA gyrase (topoisomerase II) and topoisomerase IV, enzymes essential for DNA replication, transcription, and repair. Betamethasone binds to cytoplasmic glucocorticoid receptors, triggering anti-inflammatory and immunosuppressive effects by inhibiting phospholipase A2 (reducing prostaglandin/leukotriene synthesis), stabilizing lysosomal membranes, and inhibiting migration of inflammatory cells.

🤕 Side Effects

  • Transient ocular burning/stinging upon instillation
  • Conjunctival hyperemia
  • Itching
  • Foreign body sensation
  • Blurred vision (temporary) after ointment application
  • Taste disturbance (if drained via nasolacrimal duct)

🤰 Special Populations

Pregnancy: Category C (US FDA). Corticosteroids have been shown to be teratogenic in animals. Ciprofloxacin may cause arthropathy in immature animals. Use only if potential benefit justifies potential fetal risk. Avoid prolonged use.

Driving: May cause temporary blurred vision; patients should not drive or operate machinery until vision clears.

🔄 Drug Interactions

Other Corticosteroids (oral/topical)Additive risk of hypercortisolism and IOP elevationMajor
Non-steroidal Anti-inflammatory Drugs (NSAIDs) topical (e.g., Ketorolac, Diclofenac)May increase risk of corneal healing impairmentModerate
Anticoagulants (e.g., Warfarin)Theoretical risk of increased INR with significant systemic absorption of betamethasoneModerate
Other Ophthalmic Solutions containing metals (Zinc, Magnesium)May form chelates with ciprofloxacin, reducing efficacy. Administer at least 10 minutes apart.Moderate

🔁 Alternatives to C-Beta

Same composition (Ciprofloxacin (0.3%) + Betamethasone (0.1%)), different brands:

Ciplox-BD Betacip Ciprolet-B Floxibet