FEDGAS

  • Biorelevant dissolution media simulating gastric fluids after food

  • Excellent discriminatory power for neutral, basic or acidic BCS Class 2 drugs

  • Reduce the risk of bioequivalence (BE) failures for water insoluble drugs

  • 3 different pH’s (6, 4.5 and 3) reflect different stages of stomach emptying

  • Designed for use in standard USP Dissolution 1 and 2 apparatus

  • Each bottle of Gel +Buffer Concentrate makes 6L of dissolution medium

  • Custom Syringe Filters available in packs of 72 pieces

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1) Buy Gel:

  • Use in combination with FEDGAS Buffer Concentrate of your choice

FEDGAS Gel (6L)
FDG-GEL
1kg
FEDGAS Gel (600mL)
FDG-GEL-SM
110g
In stock
$499.99
Buy 3, Save 20%
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In stock
$149.99
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2) Choose Buffer Concentrate(s):

  • pH values represent different stages of stomach emptying: early (6), middle (4.5) and late (3)

  • Use in combination with FEDGAS Gel

pH6 FEDGAS Buffer Concentrate
FDG-BUF6
250g
pH4.5 FEDGAS Buffer Concentrate
FDG-BUF4.5
250g
pH3 FEDGAS Buffer Concentrate
FDG-BUF3
250g
In stock
$29.99
- +
In stock
$29.99
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In stock
$29.99
- +

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3) Add Syringe Filters:

  • For filtration of dissolution samples <5mL we recommend 13mm version

  • For filtration of dissolution samples >5mL we recommend 25mm version

GMF Syringe Filters 13mm
GMF13
72 pieces
GMF Syringe Filters 25mm
GMF25
72 pieces
In stock
$199.99
Buy 8, Save 37%
- +
In stock
$199.99
Buy 8, Save 37%
- +
Media Preparation Tool
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How many litres do you require?

                             

FEDGAS simulates fed state gastric fluids. You can harness its power in your laboratory to discriminate significant formulation differences between your Test Product and the Reference. 900ml of this biorelevant dissolution medium contains the 62.5g of fat present in the high-fat meal along with bile salts present at physiological levels found in the fed stomach. Testing in it is particularly useful for lipophilic water insoluble drugs because good physiological dissolution conditions are created for these drugs.

Three types of fed state gastric media (at pH 6, pH 4.5 and pH 3) can easily be prepared using FEDGAS Gel and the appropriate diluted FEDGAS Buffer Concentrate. These three dissolution media reflect the different states of stomach emptying:

Generating and comparing dissolution profiles in the right biorelevant media helps reduce the risk of an expensive failed human bioequivalence study due to differences in formulation. Matching the dissolution profile of your Test Formulation to the Originator in FEDGAS will maximise the chances of achieving successful bioequivalence. In vitro biorelevant dissolution helps identify a Test formulation that matches the release rate of the Reference in vivo.

You can download a step-by-by step FEDGAS Dissolution Experiment Guide here.