COTREN VAGINAL TABLET 500mg

Contents

Clotrimazole

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.

Active Ingredient / Synonyms

1-((2-Chlorophenyl)diphenylmethyl)-1H-imidazole | 1-(alpha-(2-Chlorophenyl)benzhydryl)imidazole | 1-(O-Chloro-alpha,alpha-diphenylbenzyl)imidazole | 1-(o-Chloro-α,α-diphenylbenzyl)imidazole | 1-(o-Chlorotrityl)imidazole | 1-(α-(2-Chlorophenyl)benzhydryl)imidazole | Clotrimazole | Lotrimin (tn) | Mycelex (tn) | Clotrimazole |

Description

An imidazole derivative with a broad spectrum of antimycotic activity. It inhibits biosynthesis of the sterol ergostol, an important component of fungal cell membranes. Its action leads to increased membrane permeability and apparent disruption of enzyme systems bound to the membrane. [PubChem]

Indication

For the local treatment of oropharyngeal candidiasis and vaginal yeast infections, also used in fungal infections of the skin such as ringworm, athlete's foot, and jock itch.

Mechanism of Action

Clotrimazole interacts with yeast 14-α demethylase, a cytochrome P-450 enzyme that converts lanosterol to ergosterol, an essential component of the membrane. In this way, clotrimazole inhibits ergosterol synthesis, resulting in increased cellular permeability. Clotrimazole may also inhibit endogenous respiration, interact with membrane phospholipids, inhibit the transformation of yeasts to mycelial forms and the uptake of purine, impair triglyceride and/or phospholipid biosynthesis, and inhibit the movement of calcium and potassium ions across the cell membrane by blocking the ion transport pathway known as the Gardos channel.

Pharmacodynamics

Clotrimazole, an imidazole derivative with a broad spectrum of antimycotic activity, inhibits biosynthesis of the sterol ergostol, an important component of fungal cell membranes. Its action leads to increased membrane permeability and apparent disruption of enzyme systems bound to the membrane. Betamethasone and clotrimazole are used together to treat cutaneous tinea infections. In studies in fungal cultures, the minimum fungicidal concentration of clotrimazole caused leakage of intracellular phosphorous compounds into the ambient medium with concomitant breakdown of cellular nucleic acids, and accelerated potassium etflux. Both of these events began rapidly and extensively after addition of the drug to the cultures. The primary action of clotrimazole is against dividing and growing organisms.

Pharmacokinetics

Absorption:

Poorly and erratically absorbed orally, minimal vaginal or topical absorption.

Distribution:

Not Available

Metabolism:

Hepatic (metabolized to inactive metabolites)

Elimination:

Not Available

Half-life

2 hours

Clearance

Not Available

Toxicity

Symptoms of overdose include erythema, stinging, blistering, peeling, edema, pruritus, urticaria, burning, and general irritation of the skin, and cramps.

References

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

Although best effort has been made to ensure the information provided is correct and updated, users are advised to visit HSA Official website whenever in doubt. Please see Disclaimers.
We welcome all the content error reporting/feedback. Please contact us @ Text Us!

Approval Information

COTREN VAGINAL TABLET 500mg was registered with Health Science Authority of Singapore by MEDISPEC RENAISSANCE PTE LTD. It is marketed with the registration number of SIN00175P with effective from 1988-03-25.

This product contains 500mg of Clotrimazole in the form of TABLET.

The medicine was manufactured by BIOLAB CO LTD in THAILAND

It is a Pharmacy Only Medicine which can be obtained from a pharmacist at a retail pharmacy.

Anatomical Therapeutic Chemical (ATC) Classification

Products Containing as Single Ingredient

Drug IDTrade NameActive IngredientsForensic ClassRegistrantStatus
1DEXTROMETHORPHAN LINCTUS 15mg/5mlDextromethorphanP OnlyDRUG HOUSES OF AUSTRALIA PTE LTDActive
22ZENMOLIN SYRUP 2mg/5mlSalbutamolP OnlyDRUG HOUSES OF AUSTRALIA PTE LTDActive
41APO-PROPRANOLOL TABLET 40mgPropranololPOMPHARMAFORTE SINGAPORE PTE LTDActive
42APO-DIAZEPAM TABLET 2mgDiazepamPOMPHARMAFORTE SINGAPORE PTE LTDActive
44APO-DIAZEPAM TABLET 5mgDiazepamPOMPHARMAFORTE SINGAPORE PTE LTDActive
45APO-DIAZEPAM TABLET 10mgDiazepamPOMPHARMAFORTE SINGAPORE PTE LTDActive
46APO-PROPRANOLOL TABLET 10mgPropranololPOMPHARMAFORTE SINGAPORE PTE LTDActive
55APO-ISDN TABLET 10mgIsosorbide DinitratePOMPHARMAFORTE SINGAPORE PTE LTDActive
63DIAPO TABLET 10mgDiazepamPOMBEACONS PHARMACEUTICALS PTE LTDActive
64FURMIDE TABLET 40mgFurosemidePOMBEACONS PHARMACEUTICALS PTE LTDActive

Products Containing as Mixture Ingredient

Drug IDTrade NameActive IngredientsForensic ClassRegistrantStatus
4DIPHENHYDRAMINE EXPECTORANTAmmonium Chloride|Diphenhydramine|Sodium CitrateP OnlyDRUG HOUSES OF AUSTRALIA PTE LTDActive
5DIPHENHYDRAMINE EXPECTORANT PAED.Ammonium Chloride|Diphenhydramine|Sodium CitrateP OnlyDRUG HOUSES OF AUSTRALIA PTE LTDActive
400FAKTU SUPPOSITORYCinchocaine|PolicresulenP OnlyTAKEDA PHARMACEUTICALS (ASIA PACIFIC) PTE LTDActive
407TRIMAXAZOLE TABLETSulfamethoxazole|TrimethoprimPOMBEACONS PHARMACEUTICALS PTE LTDActive
435APO-SULFATRIM TABLETSulfamethoxazole|TrimethoprimPOMPHARMAFORTE SINGAPORE PTE LTDActive
508APO-SULFATRIM PEDIATRIC TABLETSulfamethoxazole|TrimethoprimPOMPHARMAFORTE SINGAPORE PTE LTDActive
526B.S. SUSPENSIONSulfamethoxazole|TrimethoprimPOMAPEX PHARMA MARKETING PTE LTDActive
583CO-TRIMEXAZOLE SUSPENSIONSulfamethoxazole|TrimethoprimPOMBEACONS PHARMACEUTICALS PTE LTDActive
676BANEOCIN OINTMENTBacitracin|NeomycinPOMNOVARTIS (SINGAPORE) PTE LTDActive
678BANEOCIN POWDERBacitracin|NeomycinPOMNOVARTIS (SINGAPORE) PTE LTDActive