How do I prepare for FaSSIF media?
How do I prepare for FaSSIF media?
According to Galia (30,31), FaSSIF is prepared as follows: 1.65 sodium taurocholate is dissolved in 250 ml blank FaSSIF (buffer without the bile components), 5.9 ml of a solution containing 100 mg/ml lecithin in methylene chloride is added to form an emulsion, and the methylene chloride is eliminated under vacuum until …
How do you make FaSSIF?
To make 1 L of FaSSIF Make up to volume (1 L) with purified water at room temperature. STEP 2 ● Add SIF Powder Add 2.24 g of FaSSIF/FeSSIF/FaSSGF powder into suitable container Add buffer to volume (1 L) Stir until powder is completely dissolved ● it’s Ready to use Let stand for 2 hours.
How do you calculate sink condition in dissolution?
Cs = Saturation Constant of API Ct = API Concentration at Time t
- Change the API – If this is early on in formulation development, you may be able to find an API with better solubility, such as one complexed with a salt.
- Change the pH of the dissolution media.
What is the sink condition in dissolution?
Sink condition is the ability of the dissolution media to dissolve at least 3 times the amount of drug that is in your dosage form. Having sink conditions helps your dissolution have more robustness as well as being more biologically relevant.
What is the pH of simulated intestinal fluid?
For all the enteric-coated tablets, they must endure simulated gastric fluid (pH 1.2) in the first 2 h followed by 1 h in simulated intestinal fluid (pH 6.8) according to the standard method, since rosiglitazone sodium will hydrolyze quickly into rosiglitazone in aqueous solution, and rosiglitazone is insoluble in …
How to make 1 L of fessif buffer?
To make 1 L of FeSSIF STEP 1 Prepare buffer Weigh 81.41 g (or 70.00 mL) of FeSSIF Buffer Concentrate into suitable container Adjust the pH to 5 with either 1M NaOH or 1M HCl. Make up to volume (1 L) with purified water at room temperature. STEP 2 Add SIF Powder Add 11.20 g of of FaSSIF/FeSSIF/FaSSGF powder into suitable container
What’s the pH of a phosphate buffer for fassif?
For FaSSIF, SIF Powder Original was added to a phosphate buffer with a pH of 6.5. For FaSSIF-V2, SIF Powder FaSSIF- V2 was added to a maleate buffer with a pH of 6.5 corre- sponding to the recipe used by Jantratid (4).
How is the Biorelevant medium for fassif made?
The desired biorelevant medium was made by dissolv- ing the appropriate amount of SIF Powder Original or SIF Powder FaSSIF-V2 in the recommended blank buffer. For FaSSIF, SIF Powder Original was added to a phosphate buffer with a pH of 6.5.
What is the pH and composition of fessif?
The composition, osmolarity and buffer strength of FeSSIF . pH 5.8, pH 6.5, pH 6.8 and pH 7.2presented in table 4. Blank FeSSIF is prepared by dissolving 20.2g of sodium hydroxide pellets, 43.25g of glacial acetic acid and 59.37g of sodium chloride in 5L of purified water.