HSA Reclassified Drug | Exemptions For Supply of Ketotifen Without Prescription



Eligible Active Ingredient: Ketotifen. As eyedrops not exceeding 0.25mg/ml
With Effective From: 1-Jan-12
Indication Permitted: For the short-term treatment of symptoms of allergic conjunctivitis (e.g. itchy or watery eyes)
Maximum Daily Dose: Dosing regimen: Adults, elderly and children (age 3 and older): One drop into the affected eye (s) twice daily (in the morning and evening)
Max: 2 drops per affected eye
Maximum Supply per Transaction: 10ml
Minimum Age of User: 3 years
Patient Information Leaflet from HSA/PSS: Download PIL (Link to HSA website)


Mechanism of Action of Ketotifen

Indicated as an add-on or prophylactic oral medication in the chronic treatment of mild atopic asthmatic children. Also used as self-medication for the temporary relief of itching of the eye due to allergic conjunctivitis (ophthalmic).

Additional Information of Ketotifen

Pharmacology Class: Decongestants And Antiallergics
Therapeutic Class: Ophthalmologicals
Chemical Class: Other Antiallergics
Synonyms: Ketotifene | Ketotifeno | Ketotifenum


Show All HSA-registered therapeutic products granted exemption to supply without prescription


  1. Health Science Authority of Singapore – Reclassified POM
  2. Drugbank

HSA-Registered Products Containing Ketotifen As eyedrops not exceeding 0.25mg/ml

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This list is not exhaustive. HSA collaborates with Pharmaceurical Society of Singapore (PSS) to review the appropriate use of therapeutic products in the community from time to time. Hence, HSA may enable the supply of a Prescription Only Medicine (POM) by pharmacists without a prescription, upon review that the product can be used in a safe and effective manner under the supervision of a pharmacist. This can be effected through legislative mechanisms in the absence of an application made by the product registrant to reclassify the therapeutic product, subject to to conditions including indication, strength, maximum daily dose, maximum supply quantity, and age restriction.