HSA Reclassified Drug | Exemptions For Supply of Fexofenadine Tablet Without Prescription


Eligible Active Ingredient: Fexofenadine Tablet. As an oral solid preparation containing not more than 180mg
With Effective From: 1-Jul-13
Indication Permitted: For the symptomatic treatment of allergic rhinitis and chronic idiopathic urticaria
Maximum Daily Dose: 180mg
Maximum Supply per Transaction: 10 tablets
Minimum Age of User: 12 years
Patient Information Leaflet from HSA/PSS: Download PIL (Link to HSA website)

Mechanism of Action of Fexofenadine Tablet

Like other H1-blockers, Fexofenadine competes with free histamine for binding at H1-receptors in the GI tract, large blood vessels, and bronchial smooth muscle. This blocks the action of endogenous histamine, which subsequently leads to temporary relief of the negative symptoms (eg. nasal congestion, watery eyes) brought on by histamine. Fexofenadine exhibits no anticholinergic, antidopaminergic, alpha1-adrenergic or beta-adrenergic-receptor blocking effects.

Additional Information of Fexofenadine Tablet

Pharmacology Class: Antihistamines For Systemic Use
Therapeutic Class: Antihistamines For Systemic Use
Chemical Class: Other Antihistamines For Systemic Use
Synonyms: 4-(1-Hydroxy-4-(4-(hydroxydiphenylmethyl)-1-piperidinyl)butyl)-alpha,alpha-dimethylbenzeneacetic acid | Carboxyterfenadine | Fexofenadine | Terfenadine acid metabolite | Terfenadine carboxylate | Terfenadine-COOH

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 Fexofenadine Tablet As an oral solid preparation containing not more than 180mg

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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.