Used for: Ocular hypertension, Glaucoma
Chinese name:

What is Xalacom?

Xalacom is the combination of Latanoprost and Timolol, which is a prostaglandin F2-α analogue and beta-blocker respectively. The combined effect is to decrease aqueous humor formation and increase its excretion to lower intraocular pressure. 


It is indicated for the treatment of glaucoma and ocular hypertension. 

How to use it?

Xalacom is applied to the eyes. Instill 1 drop in the affected eye(s) once daily.

What are the side effects of Xalacom?

The common side effects of Xalacom include abnormal eyelash growth, iris hyperpigmentation, eye irritation, ocular hyperemia, visual disturbance, or upper respiratory tract infection.

Who should not take Xalacom?

  • People who are allergic to Latanoprost, Timolol, benzalkonium chloride, or any component of the formulation
  • Patients with severe chronic obstructive pulmonary disease (COPD), or active/history of bronchial asthma
  • Patients with sinus bradycardia, second- or third-degree heart block, heart failure, cardiogenic shock

Pharmacist Tips:

  • There might be a chance for increased brown pigmentation of the iris which may be permanent. This condition may be reversible upon discontinuation of treatment.
  • Wash your hands with soap and water before and after using.
  • Shake the eye drops well just before each use.
  • Remove contact lenses prior to administration, and wait 15 minutes before reinserting.
  • It is important to perform punctal occlusion (apply pressure to the inner corner of the eye for 2 minutes) after administration to minimize systemic side effects.
  • Separate administration of other ophthalmic agents by at least 5 minutes.
  • Avoid driving or other activities requiring clear vision until drug effects are realized.

Common dosing schedule:

  • N/A

This schedule is for reference only, adjustments may be made according to individual needs.


Some common medications Xalacom may interact with:

Please notify your doctor or pharmacist if you are taking the above medication, dosage adjustments might be needed.

Where to buy Xalacom in Hong Kong?

In Hong Kong, Xalacom is a prescription only medicine, and requires a prescription from a doctor to be purchased in a pharmacy. It can also be obtained from doctors. To find a pharmacy near you, refer to the list of pharmacies (“Authorized Sellers of Poisons”) from the Hong Kong Department of Health.


For more information about drug names and ingredients, you can visit Hong Kong’s Drug Office at https://www.drugoffice.gov.hk

Need more information?

For detailed information about the use of Xalacom in children, pregnancy and breastfeeding, and for questions about drug interactions, please check with your pharmacist or doctor.

Disclaimer: our goal is to provide you with the most relevant drug information and common dosage for Hong Kong. This information does not constitute medical advice. For specific treatment recommendations and advice, always discuss with your doctor or pharmacist, and follow the instructions included with your specific medicine.

Available dosage
  • 0.005%/0.5% (Eye Drops)
Drug class
Anti-Glaucoma Agents
Sub class
Beta Blockers, Prostaglandin Analogues
Generic Names
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