About timolol maleate
Ophthalmic beta blocker
Used for
- Lowers eye pressure in open-angle glaucoma
- Lowers eye pressure in ocular hypertension
Usual adult dose
Usually one drop in the affected eye or eyes twice daily; a clinician may adjust dosing.
Usual dose in children
Not routinely used in children; specialist-directed dosing varies by age and condition.
Common side effects
- Eye burning, stinging, or irritation
- Blurred vision or dry eyes
- Slow heartbeat or low blood pressure
- Breathing difficulty, especially in people with asthma
Important warnings
- Can worsen asthma, COPD, heart failure, or slow heart rhythms.
- Eye drops can enter the bloodstream and cause serious heart or breathing effects.
- May mask signs of low blood sugar in people with diabetes.
- Do not stop suddenly without medical guidance; eye pressure may rise.
Pregnancy
Use only when needed after a clinician weighs potential benefits and risks.
Breastfeeding
May pass into breast milk; discuss potential risks with a healthcare professional.
Interactions
- Other beta blockers can increase effects on heart rate and blood pressure.
- Some heart medicines, including verapamil and diltiazem, may slow the heart further.
- Diabetes medicines may have their effects masked or altered.
- Other eye-pressure medicines can add to pressure-lowering effects.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.