Ketanov OZ

Ketorolac (0.4% w/v) + Olopatadine (0.1% w/v)
Price: ₹170 - ₹240 for 5ml bottle
Mfr: Cipla Ltd. | Form: Ophthalmic Solution

📋 Clinical Overview

A fixed-dose combination ophthalmic solution containing a non-steroidal anti-inflammatory drug (NSAID) and a selective histamine H1-receptor antagonist. It provides dual-action therapy for allergic conjunctivitis by inhibiting prostaglandin synthesis (anti-inflammatory) and blocking histamine release (anti-allergic). It is a mainstay for moderate to severe allergic eye conditions in the Indian market.

💊 Dosage & Administration

Adult: One drop instilled into the affected eye(s) twice daily (every 8-12 hours).

Note: 1. Wash hands. 2. Tilt head back. 3. Gently pull lower eyelid to form a pouch. 4. Instill one drop without touching the dropper tip to eye or any surface. 5. Close eyes gently for 1-2 minutes, applying gentle pressure to the nasolacrimal duct (inner corner of eye) to minimize systemic absorption. 6. Wait at least 10 minutes before inserting contact lenses. 7. Wait at least 5 minutes before instilling any other eye drop.

⚠️ Contraindications

  • Hypersensitivity to Ketorolac, Olopatadine, or any component of the formulation
  • Patients wearing soft contact lenses (during instillation)
  • Active or suspected viral (e.g., herpes simplex) or fungal keratitis
  • Active epithelial herpes simplex keratitis (dendritic keratitis)

🔬 Mechanism of Action

Provides synergistic action for allergic conjunctivitis. Olopatadine is a relatively selective H1-receptor antagonist and inhibits the release of histamine and other inflammatory mediators (like tryptase, prostaglandin D2, leukotrienes) from mast cells. Ketorolac tromethamine is a potent NSAID that inhibits the enzyme cyclooxygenase (COX), thereby reducing the synthesis of prostaglandins, which are key mediators of ocular inflammation, pain, and photophobia.

🤕 Side Effects

  • Transient ocular burning/stinging on instillation
  • Mild irritation/foreign body sensation
  • Dry eye
  • Headache
  • Blurred vision temporarily

🤰 Special Populations

Pregnancy: Category C (US FDA). Animal studies show risk. Adequate human studies lacking. Use only if potential benefit justifies potential fetal risk, especially in third trimester (risk of premature ductus arteriosus closure). Avoid in late pregnancy.

Driving: May cause transient blurred vision. Patients should not drive or operate machinery until vision clears.

🔄 Drug Interactions

Oral NSAIDs (e.g., Ibuprofen, Diclofenac, Aspirin)Increased risk of systemic NSAID adverse effects (GI bleeding, renal impairment).Moderate
Anticoagulants (e.g., Warfarin)Potential increased risk of bleeding due to antiplatelet effect of Ketorolac.Moderate
Corticosteroids (oral or topical)Increased risk of GI ulceration and impaired corneal healing.Moderate
ACE Inhibitors (e.g., Enalapril) / ARBs (e.g., Telmisartan)Reduced antihypertensive effect; risk of renal function deterioration.Moderate
Diuretics (e.g., Furosemide)Risk of nephrotoxicity and reduced diuretic efficacy.Moderate
MethotrexateIncreased methotrexate toxicity due to reduced renal clearance.Major
Other topical ophthalmic NSAIDsAdditive risk of corneal adverse effects. Avoid concomitant use.Major

🔁 Alternatives to Ketanov OZ

Same composition (Ketorolac (0.4% w/v) + Olopatadine (0.1% w/v)), different brands:

Opatac-K Ketorol OZ Keto-O