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Lactose, Monohydrate Lactose, Anhydrous Lactose, Spray-Dried Lactose, Agglomerated Lactose, Milled

Lactose is a disaccharide of galactose and glucose. It is widely used as a filler and diluent in oral solid dosage forms such as tablets and capsules. There are different grades of lactose available which can vary depending on properties such as flow characteristics, particle size distribution, and physical form. Each can be used in buccal delivery depending on formulation and process needs.
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Primary function
Filler/ Diluent
Typical use level
10 - 90%
Physical data

  • Appearance: White to nearly white crystalline particles or powder in various isomeric forms depending on crystallization and drying conditions.
  • Soluble in water
  • Specific rotation: +54.4° - 55.9°

Benefits / Claims
Formulation flexibility due to availability of different lactose grades. Deforms by brittle fracture and is a good compliment to plastically deforming formulation ingredients.
Suitable for
Hard Gel Capsules
Modified Release specials
Dry-powder inhaler

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