Bimatoprost and Timolol Eye drops

Category- Allopathy

About Bimatoprost and Timolol Eye drops

Bimatoprost and Timolol Eye Drops are a combination of ophthalmic medicine used to reduce increased pressure inside the eye (intraocular pressure) in people with open-angle glaucoma or ocular hypertension. Bimatoprost is a prostaglandin analogue that increases the drainage of fluid (aqueous humor) from the eye, while timolol is a beta-blocker that reduces the production of fluid inside the eye. Together, they help lower eye pressure and reduce the risk of vision loss. 

This medicine is intended for use only in the affected eye(s) and should be used exactly as prescribed by your doctor. Avoid touching the dropper tip to any surface, including your eye, to prevent contamination. Temporary blurred vision, eye redness, or eye irritation may occur after use. Contact lens wearers should remove their lenses before instillation and wait at least 15 minutes before reinserting them.    

Medicine Highlights

Uses 1. To reduce increased intraocular pressure in open-angle glaucoma  
2. To treat ocular hypertension   
Common Side Effects  1. Eye redness  
2. Eye irritation or burning sensation  
3. Blurred vision  
4. Itchy eyes  
5. Dry eyes  
Additional Information 1. For ophthalmic (eye) use only.  
2. Remove contact lenses before use and reinsert after 15 minutes.   
Storage 1. The medicine should be stored at room temperature.  
2. Keep away from sunlight and moisture.  
3. Keep away from the reach of children 
How to Take This MedicineInstill the 1-2 number of drops into the affected eye(s)

Bimatoprost and Timolol Eye drops Uses

Bimatoprost and Timolol Eye drops is used for the following indications: 

  1. To reduce increased intraocular pressure in patients with open-angle glaucoma  
  2. To treat ocular hypertension     

Bimatoprost and Timolol Eye drops side effects 

More Common

  1. Eye redness  
  2. Burning or stinging sensation  
  3. Blurred vision  
  4. Eye itching  
  5. Dry eyes                

Less Common 

  1. Eye pain  
  2. Changes in eyelash growth  
  3. Darkening of the eyelid skin  
  4. Change in iris (eye) color  
  5. Slow heartbeat  
  6. Difficulty breathing  
  7. Severe allergic reactions             

How Bimatoprost and Timolol Eye drops work 

Bimatoprost in this medicine increases the outflow of aqueous humor through the uveoscleral pathway, helping lower intraocular pressure. Timolol blocks beta-adrenergic receptors in the ciliary body, reducing the production of aqueous humor. Together, they effectively decrease pressure inside the eye and help prevent damage to the optic nerve. 

Safety Measures and Warning 

Allergy/Hypersentivity

Do not use this medicine if you are allergic to bimatoprost, timolol, beta-blockers, or any of the ingredients. Seek immediate medical attention if you develop swelling, rash, itching, or difficulty breathing.

Asthma or COPD

Do not use this medicine if you have asthma, severe chronic obstructive pulmonary disease (COPD), or a history of severe breathing problems, as timolol may worsen these conditions.

Heart Disease

Inform your doctor if you have a slow heart rate, heart block, heart failure, or other heart conditions before using these eye drops.

Contact Lenses

Remove contact lenses before applying the drops and wait at least 15 minutes before reinserting them.

Pregnancy

Use during pregnancy only if prescribed by your doctor after assessing the benefits and risks.

Breastfeeding

Timolol may pass into breast milk. Consult your doctor before using this medicine while breastfeeding.

Bimatoprost and Timolol Eye drops Interaction with Food Product 

There are no significant food interactions with Bimatoprost and Timolol Eye Drops. 

Bimatoprost and Timolol Eye drops Interaction with Other Medicines  

Avoid taking Bimatoprost and Timolol Eye drops with the following medicines, as it may increase or decrease the desired effect, or in worse cases, it could be fatal:

Bimatoprost and Timolol Eye drops Chemical Structure

IUPAC (International Union of Pure and Applied Chemistry)/ Chemical name

Bimatoprost: (Z)-7-[(1R,2R,3R,5S)-3,5-dihydroxy-2-[(E,3S)-3-hydroxy-5-phenylpent-1-enyl]cyclopentyl]-N-ethylhept-5-enamide

Bimatoprost 

Timolol: (2S)-1-(tert-butylamino)-3-[(4-morpholin-4-yl-1,2,5-thiadiazol-3-yl)oxy]propan-2-ol

Timolol

Intake routine/cycle

Daily dose

Take Bimatoprost and Timolol Eye drops exactly as your doctor recommends. The dose may change based on your condition and how well you respond. Do not take more than prescribed without consulting your doctor.

Missed Dose

If you forget to take your medicine, take the medication as soon as you remember. If it’s nearly time for your next dose, skip the missed one and continue with your regular schedule. Always consult the doctor before making any changes to your dosage.

Overdose

Excessive use may increase the risk of side effects such as eye irritation, slow heartbeat, dizziness, or breathing difficulty. If too many drops are used or the medicine is accidentally swallowed, seek medical attention immediately.

Storage

  1. Store the medicine at room temperature. 
  2. Keep away from sunlight and moisture. 
  3. Keep out of reach of children 

Directions for use 

  1. Use the eye drops as prescribed by your doctor.  
  2. Wash your hands before using the medicine.  
  3. Tilt your head back and gently pull down the lower eyelid.  
  4. Instill one drop into the affected eye(s).  
  5. Close your eyes gently for 1–2 minutes without blinking.  
  6. If you miss a dose, use it as soon as you remember. If it is almost time for your next dose, skip the missed dose. 

FAQ’s

What are the uses of Bimatoprost and Timolol Eye Drops? 

Bimatoprost and Timolol Eye Drops are used to lower increased pressure inside the eye (intraocular pressure) in people with open-angle glaucoma or ocular hypertension. They help protect the optic nerve and reduce the risk of vision loss by improving fluid drainage from the eye and reducing fluid production.

What are the side effects of Bimatoprost and Timolol Eye Drops? 

Common side effects include eye redness, burning or stinging sensation, blurred vision, itchy eyes, and dry eyes. Less common but serious side effects include eye pain, changes in eyelash growth, darkening of the eyelid or iris, slow heartbeat, difficulty breathing, and allergic reactions. Contact your doctor if you experience severe or persistent side effects. 

How should I use Bimatoprost and Timolol Eye Drops? 

Wash your hands before use. Instill one drop into the affected eye(s) as prescribed by your doctor. Avoid touching the dropper tip to your eye or any surface. If you wear contact lenses, remove them before using the drops and wait at least 15 minutes before reinserting them. 

Reference  

  1. Cordeiro MF, Oddone F, Mermeklieva EA, Rokicki DM, Nisslé S, Gościniewicz P, et al. Low-concentration bimatoprost 0.01% and timolol 0.1% eye gel versus bimatoprost 0.03% and timolol 0.5% eye drops in open-angle glaucoma or ocular hypertension: a phase III randomised study. The British journal of ophthalmology [Internet]. 2026 Winter [cited 2026 July 11];110(4):403–9. Available from 
  2. Bimatoprost/Timolol 0.3mg/ml + 5mg/ml eye drops, solution – Summary of Product Characteristics (SmPC) – (emc) | 12468 [Internet]. Medicines.org.uk. 2025 [cited 2026 July 11]. Available from 
  3. PubChem. PubChem [Internet]. Nih.gov. PubChem; 2026 [cited 2026 July 11]. Available from 
  4. PubChem. PubChem [Internet]. Nih.gov. PubChem; 2026 [cited 2026 July 11]. Available from 
  5. Bimatoprost/Timolol 0.3 mg/mL + 5 mg/mL Eye Drops, solution: Patient Information Leaflet [Internet]. Electronic Medicines Compendium (eMC); [cited 2026 Jul 11]. Available from                

Authors

  • Pranathi Chintaluri

    Pranathi is a final year Pharm D student at Chalapathi Institute of Pharmaceutical Sciences. She loves learning and applying her knowledge in pharmacy and has a passion for writing, which allows her to express ideas clearly and creatively. She enjoys combining her technical skills with her love for writing and communication to make a meaningful impact. Currently she is working on a research paper about “Consanguineous marriages and its impact on children's health” which will be published by the end of 2025.

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  • Mahak Phartyal

    Mahak Phartyal completed her bachelor's in pharmacy from Veer Madho Singh Bhandari Uttarakhand Technical University. She previously worked as a Medical Writer at Meril Life Sciences, where she wrote numerous scientific abstracts for conferences such as India Live 2024 and the European Society of Cardiology (ESC). During her college years, she developed a keen research interest and published an article titled “Preliminary Phytochemical Screening, Physicochemical and Fluorescence Analysis of Nyctanthes arbor-tristis and Syzygium cumini Leaves.

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