Product Information

Registration Status: Active

ILIADIN SPRAY 0.05% is approved to be sold in Singapore with effective from 1989-04-28. It is marketed by MERCK PTE LTD, with the registration number of SIN02674P.

This product contains Oxymetazoline 0.5mg in the form of SPRAY. It is approved for NASAL use.

This product is manufactured by MERCK KGAA in GERMANY.

It is an Over-the-counter Medicine that can be freely obtained from any retailer



A direct acting sympathomimetic used as a vasoconstrictor to relieve nasal congestion. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1251)


For treatment of nasal congestion and redness associated with minor irritations of the eye

Mechanism of Action

Oxymetazoline is a direct acting sympathomimetic amine, which acts on alpha-adrenergic receptors in the arterioles of the conjunctiva and nasal mucosa. It produces vasoconstriction, resulting in decreased conjunctival congestion in ophthalmic. In nasal it produces constriction, resulting in decreased blood flow and decreased nasal congestion.

Active Ingredient/Synonyms

2-(4-Tert-butyl-2,6-dimethyl-3-hydroxybenzyl)-2-imidazoline | 3-[(4,5-dihydro-1H-Imidazol-2-yl)methyl]-6-(1,1-dimethylethyl)-2,4-dimethylphenol | 6-t-Butyl-3-(2-imidazolin-2-ylmethyl)-2,4-dimethylphenol | 6-Tert-butyl-3-(2-imidazolin-2-ylmethyl)-2,4-dimethylphenol | Oximetazolinum | Oxymetazolina | Oxymetazolinum | Oxymethazoline | Oxymetozoline | Oxymetazoline |

Source of information: Drugbank (External Link). Last updated on: 3rd July 18. *Trade Name used in the content below may not be the same as the HSA-registered product.


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