Oftensin (Timolol)

Timolol is used in ophthalmology to manage conditions that involve elevated intra‑ocular pressure.

• Primary open‑angle glaucoma: lowers the risk of progressive vision loss by reducing eye pressure.
• Ocular hypertension: helps to maintain target intra‑ocular pressure and delay onset of glaucoma.
• Secondary secondary glaucoma (e.g., pigment pigment dispersion): provides adjunct pressure control when other therapies are insufficient.
• Post‑operative post‑surgical eye care after laser or surgical procedures to prevent pressure spikes in the early recovery phase.

• Timolol is a non‑selective beta‑adrenergic antagonist that blocks beta‑1 and beta‑2 receptors in the ciliary body of the eye. This inhibition reduces the production of aqueous humor, leading to a decrease in intra‑ocular pressure, which helps to protect the optic nerve from pressure‑related damage.

Timolol may cause a range of ocular and systemic adverse reactions.

Common Side Effects

• Burning or stinging sensation in the eye.
• Temporary blurred vision.
• Dry eye or mild irritation.
• Reduced tear production.
• Mild headache.
• Transient fatigue.

Serious or Rare Side Effects

• Significant reduction in heart rate (bradycardia).
• Marked drop in blood pressure (hypotension).
• Bronchospasm in patients with asthma or chronic obstructive pulmonary disease.
• Severe allergic reaction (anaphylaxis) with swelling, rash, or difficulty breathing.
• Persistent visual disturbances.
• Cardiac conduction abnormalities.

When using Timolol eye drops, patients and clinicians should consider several safety measures.

• Assess cardiovascular status: check for bradycardia, heart block, or heart failure before initiating therapy.
• Review respiratory health: avoid in patients with asthma or severe COPD.
• Monitor for systemic absorption: watch for signs of beta‑blocker systemic effects, especially in the elderly.
• Caution in diabetic patients: beta‑blockade may mask hypoglycaemic symptoms.
• Avoid concurrent use with other ocular beta‑blockers unless directed by a specialist.
• Store at ambient temperature: keep in the original container, protect from light and moisture.

Timolol can interact with several systemic and ocular medications, altering its efficacy or safety profile.

Major Interactions (Avoid)

• Non‑selective non‑dosed    -    non‑dosed  ...

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