Griseofulvin (GSF) formulation by direct compression
Formulation Guideline

Griseofulvin (GSF) formulation by direct compression

Griseofulvin formulation demonstrating the excellent properties of MICROCEL® microcrystalline as directly compressible excipient for swallowable tablets.

Objective

Griseofulvin formulation by direct compression based on different grades of microcrystalline cellulose (MCC) 

Formula  

Ingredient

Functionality of the ingredient

mg/tablet
(total weight: 250mg)

% by weight

Griseofulvin

Active Pharmaceutical Ingredient

87.5

35

MICROCEL® 102 SD

MICROCEL® 200 SD

MICROCEL® MC-102

MICROCEL® MC-200

Direct compression filler-binder

Disintegrant

161.25

64.5

Magnesium stearate

Lubricant

1.25

0.5

Method

1. In a mixer, mix the ingredients MCC and griseofulvin for 5 minutes.
2. Add the magnesium stearate and mix for 3 minutes more.
3. Tablets made using 11.28 mm diameter (1 cm2) round, flat-faced TSM-D tooling with a target weight of 250 mg. 
4. Tablets were made under 15 kN using a Styl’One Evolution (Medel’Pharm, Beynost, France) at medium compression speed simulating Korsch XL-400 rotary compressor (35 rpm = 1015 tab/min).
5. Immediately after compression, tablets were weighted; the thickness, diameter and tablet breaking force were measured by hardness tester (MultiTest 50, SOTAX Corp., Westborough, MA, US). 
6. Dissolution profile was evaluated.

Additional comments

All grades (MICROCEL® 102 SD, MICROCEL® 200 SD, MICROCEL® MC-102 and MICROCEL® MC-200) prove to lead to tablets with good physical properties and 80% Griseofulvin dissolution within 30 minutes as per USP requirements.

 

APAP 250mg tablets (Compression Force:15 kN)

Weight (mg)

Hardness (N)

Porosity (%)

MICROCEL® 102 SD

236.0

154.3

17.7

MICROCEL® MC-102

234.2

121.7

19.0

MICROCEL® 200 SD

234.8

89.0

18.1

MICROCEL® MC-200

227.9

62.0

18.8

Tablets passed the friability test based on USP criteria.

Griseofulvin released percentage during dissolution study:

Comment on Roquette product benefits

- MCC has many functionalities: filler, binder, filler/binder, disintegrant.
- MICROCEL® 102 SD, MICROCEL® 200 SD, MICROCEL® MC-102 and MICROCEL® MC-200 are excellent fillers/binders and disintegrants for direct compression with a high API dilution potential (up to 35% for griseofulvin).
- MICROCEL® 102 SD are MICROCEL® 200 SD spray-dried grades and are a better fit from particle size point of view with griseofulvin. 

 

® Registered trademark(s) of Roquette Frères. MICROCEL® is a registered trademark in Benelux, Brazil, Canada, Chile, France, Germany, Italy, Mexico, the United Kingdom, and the United States of America and is pending in other countries or regions.

Disclaimer

This formula is a guideline for recommended use of our products; it does not imply consent to their use in violation of existing patent(s). 
These details are for information only, and we believe them to be reliable.

 

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