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FLUCUR NEBULISER

Product Information

Registration Status: Active

SIN07343P

FLUCUR NEBULISER is approved to be sold in Singapore with effective from 1993-02-26. It is marketed by Naari Pharma PTE LTD, with the registration number of SIN07343P.

This product contains Chlorpheniramine 3mg/ml, and Naphazoline 0.5mg/ml in the form of SPRAY. It is approved for NASAL use.

This product is manufactured by SHIGAKEN PHARM IND CO LTD in JAPAN.

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

Product Reference
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Description

A histamine H1 antagonist used in allergic reactions, hay fever, rhinitis, urticaria, and asthma. It has also been used in veterinary applications. One of the most widely used of the classical antihistaminics, it generally causes less drowsiness and sedation than promethazine. [PubChem]

Indication

For the treatment of rhinitis, urticaria, allergy, common cold, asthma and hay fever.

Mechanism of Action

Chlorpheniramine binds to the histamine H1 receptor. This blocks the action of endogenous histamine, which subsequently leads to temporary relief of the negative symptoms brought on by histamine.

Pharmacokinetics

Absorption
Well absorbed in the gastrointestinal tract.
Distribution
Metabolism
Primarily hepatic via Cytochrome P450 (CYP450) enzymes.
Elimination

Toxicity

Oral LD50 (rat): 306 mg/kg; Oral LD50 (mice): 130 mg/kg; Oral LD50 (guinea pig): 198 mg/kg [Registry of Toxic Effects of Chemical Substances. Ed. D. Sweet, US Dept. of Health & Human Services: Cincinatti, 2010.] Also a mild reproductive toxin to women of childbearing age.

Active Ingredient/Synonyms

1-(p-chlorophenyl)-1-(2-pyridyl)-3-dimethylaminopropane | 1-(p-chlorophenyl)-1-(2-pyridyl)-3-N,N-dimethylpropylamine | 2-[p-chloro-α-[2-(dimethylamino)ethyl]benzyl]pyridine | 3-(p-chlorophenyl)-3-(2-pyridyl)-N,N-dimethylpropylamine | Chlorophenylpyridamine | Chlorphenamin | Chlorphenaminum | Chlorpheniramine | Chlorpheniramine polistirex | Chlorpheniraminum | Clorfenamina | Clorfeniramina | γ-(4-chlorophenyl)-N,N-dimethyl-2-pyridinepropanamine | γ-(4-chlorophenyl)-γ-(2-pyridyl)propyldimethylamine | Chlorphenamine |


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.


Description

Naphazoline is a rapid acting sympathomimetic vasoconstrictor of occular artierioles. It acts to decrease congestion of the conjunctiva and is found in many over-the-counter eye drops.

Indication

Naphazoline is primarily indicated in conditions like Corneal vascularity, Hyperaemia, Itching, Nasal congestion, and can also be given in adjunctive therapy as an alternative drug of choice in Sinusitis

Mechanism of Action

Naphazoline is a direct acting sympathomimetic drug, which acts on alpha-adrenergic receptors in the arterioles of the nasal mucosa. This activates the adrenal system to yield systemic vasoconstrction. In producing vasoconstriction, the result is a decrease in blood flow in the nasal passages and consequently decreased nasal congestion. The vasoconstriction means that there is less pressure in the capillaries and less water can filter out, thus less discharge is made.

Toxicity

Extended usage of Naphazoline can result in decreased effectiveness or a build up of tolerance against the drug. The number of receptors decreases, and when the administration of the drug is ceased, chronic congestion can occur; this is called rhinitis medicamentosa, commonly referred to as rebound congestion. Moreover long-term overdosing can cause degenerative changes in nasal mucous membranes that pose another health problem.

Active Ingredient/Synonyms

Nafazolin | Naphazoline |


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.

References

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

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